Wayland should be faster. What would you expect to happen? It should just work, while in the background EVERYTHING is changing.
I had assumed that I would get a somehow smoother experience (such as speed, for instance) or some other perceivable benefit, but I think Ramin Honary nicely highlighted the necessity of the change on the backend side. So your point is good, maybe I should just expect a smooth transition where I don't notice anything.
For Freetube, it should automatically detect running on Wayland and use that. But I had one bug on Freetube only on Wayland, may be an Electron issue.
If I run the executable after downloading from the GitHub repo directly, it launches in XWayland. The additional parameters I mentioned in the post used to work to launch it in Wayland, but not anymore.
But is it viable? I know very little of browser development, but my impression is that it is a lot of work to develop and keep the browsers secure. If Librewolf separated completely from upstream Firefox, would they be able to keep the browser secure without significantly expanding their team?
I ask in earnest, as I said I know very little about this.