Incredibly brave of him. I'd love to say I'd say the same, but I'm not sure if I have the courage.

I gave a few of my personal use cases above, but in short: when I need to reference or act on multiple things on different sites at short notice, and will probably need to again later; to label tabs; and when I need multiple tabs of the same website, but because the URL doesn't update a bookmark is insufficient.

Edit: You're welcome!

Yes, tab groups maintain history, even across save & reopen operations.

Here's a use case: I often have to open up a bunch of instances of the same website (an internal version of a customer-facing page). They all have the same URL, but because they're single-page apps, they all have massively different functions. For a few hours, I'll need to flip back and forth between a few of them at a time, as well as some other websites on different pages, as well as an external program that I'm referencing or modifying. Then I don't have to do that again for a week or two. So I use a tab group to put all of them in, and then once they're done, I save and close the tab group to reopen next time.

Here's another use case: I can use a single tab inside a "tab group" but use the tab group label to "name" the tab. That way, even though I have a dozen tabs open with the project name I work on at the beginning of the title, I can look at the label and know which one is the Jira ticket for the devops task I'm working on, which one is the Jira ticket for the new feature I'm waiting for QA signoff on, which one is the Jira ticket for the dependency update I need to do, etc. I also use this functionality when I have a bunch of stuff processing and I need to remember which one is on which step; do I need to do step 3 on this one or step 4? The tab group label knows.

Or here's another one: I'm currently in the middle of a big accessibility push for our product's front-end. I have all of the various tabs and resources and Jira tickets and specs open in a tab group, and I can flip between all of them. I open them all every time because it's rare that I only want one of them (though, if I do, it's nice that Firefox automatically sleeps all but the active one when I reopen the group). When I'm working on the project, I open that tab group. When I'm done, I save and close it.

Tab groups were literally the only thing I missed from Chrome when I migrated. I'm so glad to have them back, even though it did take ~~seven~~ five long years. Since it was available as a feature flag, I've used it so much.

Oh, definitely agreed. Though if Mozilla can peel off some of their money with this sponsorship and use it to support FOSS, maybe it's worth it?

Presumably they're trying to widen their financial support base with Google potentially being forced to stop supporting them. I agree it would be nice to be able to choose; probably that can be enabled with an addon.

Not enough wololo.

Because this here is for support. That there is for evangelism.

I'm a newcomer to Linux (only about a year in), but here's what I've got so far:

Will my ability to play games be significantly affected compared to Windows?

Mine wasn't at all. Valve has done a lot of work to make this seamless so that more games can be played on the Steam Deck. Check the Proton DB to see what your games look like.

Can I mod games as freely and as easily as I do on Windows?

I have very little experience with this, but probably. Linux users tend to be tinkerers.

If a program has no Linux version, is it unusable, or are there workarounds?

Can Linux run programs that rely on frameworks like .NET or other Windows-specific libraries?

Same answer for both: There's Wine, and a whole bunch of setup scripts that can get even stuff like Adobe Creative Suite working with it. Worst case scenario, there's VirtualBox for the one or two apps you might need to run Windows for. But I find that the open source options, while they might have a learning curve, tend to be substantially better than either of those options.

How do OS updates work in Linux? Is there a "Linux Update" program like what Windows has?

More or less, but you can pick and choose what updates you want to install and when. Most distros have a package manager that'll let you update the kernel, the drivers, the middleware, the desktop environment, all your apps, and even the package manager itself on your schedule, from one interface. You can also just ignore it and never update anything, though I wouldn't recommend that.

How does digital security work on Linux?

Very well. It's much more locked-down by default, for one thing.

Is it more vulnerable due to being open source?

Quite the opposite. Open source projects are well known for being less vulnerable out of the box; Linux in particular is used by huge companies as a lightweight server OS, so it has a lot of highly-paid people committing security fixes back down to the open source project.

Is there integrated antivirus software, or will I have to source that myself?

Antivirus is a bandaid on Windows, provided because the OS was written with certain naive assumptions that let attackers get access they shouldn't have. On Linux, those assumptions were not made. No application can be installed without your root password, for instance; downloaded files can't even be executed without specifically making them executable; and access to edit system files is restricted by a very robust permissions system.

All of that, plus Linux's much lower market share, also means that no malware authors are really wasting their time trying to write Linux malware. The attack vector just isn't worth the extra effort.

So no, there's no integrated antivirus; but for most users in most situations, it's not needed at all.

Are GPU drivers reliable on Linux?

Your mileage may vary significantly, but anecdotally it seems like most architectures from AMD and Nvidia have good support.

Can Linux (in the case of a misconfiguration or serious failure) potentially damage hardware?

Maybe, but like with Windows, I assume you have to really go out of your way to do so.

And also, what distro might be best for me?

I've only used Ubuntu and Mint. Mint has so far been the easiest and most user-friendly of the two. It's also regularly touted as the best for newcomers.

Committing neglectful manslaughter to own the libs.

It's time we take seditionists out of the Sheriff's Departments.

the FFmpeg version is currently used in a highly visible product in Microsoft. We have customers experience issues with Caption during Teams Live Event.

This seems like a "you" problem, Microsoft, and since you employ thousands of programmers with the experience to solve your problem and commit the change back to the FOSS project, I think this is also very easily a "you" solution as well.