yeah, you kinda got one side of it
Even if everyone is perfectly compatible, by going for a triangle you're also dealing with the dynamic of drastic change to an already existing relationship, which obviously has a stronger bond. Introducing a new person into this dynamic wreaks havoc, since the new person wants to compete, the other two want to spend a lot of time with that new person, overwhelming them, while also sticking to each other at times, essentially third-wheeling the new person.
It never works out. Too many ripples in the pond.
If you're a power user, I'd actually recommend installing Arch Linux. It will take a while, and definitely much longer then just pressing "install" on a fancy UI, but the advantages it brings are priceless.
Generally, you'll have to build the OS yourself, but you get a manual doing most of the job if you simply follow it, kinda like Lego. Given that you ultimately build it all yourself, you know how things work if anything might break. You also know how to adjust things if you wish to change something. And for everything you want to do, there's an up-to-date manual in the arch wiki.
On top of that, the distro is running the newest software, which means that almost everything is compatible and runs in the best possible way. It will be tested 2-3 weeks in advance in order to ensure it won't break your system immediately. But even if it does, guess what, there's a manual on how to fix your system.
In case you're overwhelmed at any point, there's a great community. Not sure if they managed to move to lemmy, but they're definitely over on reddit.
Good luck :)