

PikaOS is Debian based, and they’ve built the deps they need for Steam in 32-bit, so it’s not the end of the world AFAIK. GloriousEggroll seems to be part of it too, so if any refugees are looking for something not Fedora-based there you go. Although his efforts for now seem focused more on Nobara (which is Fedora-based) maybe this will cause some shake-ups there too. I can see Pika is already picking up speed from this though, the Discord is super active.
Even if Fedora doesn’t ever drop support I think even considering the possibility is shaking people’s confidence in using it as a base going forward, sort of like how Unity’s quickly-walked-back disasters drove people irrevocably towards Godot and other engines. Arch and Arch-based distros are probably starting to look much more appealing too.
I think we can all agree it’s probably a bad idea.
Does that mean you shouldn’t? Maybe. But maybe not. Sometimes it’s fun to do something “wrong”, because you want to, and maybe you’ll really enjoy it anyway. Maybe you’ll learn a lot about why it’s a bad idea, and maybe you’ll find those learnings enrich your life and give you stories to tell. I’m not trying to recommend this at all, I’m just saying you should consider it from all angles and outcomes before you make a decision, especially if this is something he really wants to do for whatever reason. Life is for living, it’s not for making a series of optimal choices to result in the highest score. Experiences, both good and bad, are their own reward. And as long as nobody’s going to get hurt, and you go into it with your eyes open and an understanding of the risks and potential downfalls, and do what you can to mitigate and protect against them as much as you can, maybe it’s something you can try.
If it’s really something you’re not comfortable with, and he is, well then you two are going to have to have a long and hard talk about it and come to some mutually agreeable compromise. But even if it is objectively a bad idea, you also need to think about whether he’s just naive and is going to hate it, or whether it’s going to make him happy that he tried it, and whether it’s an experience he needs to have in his life. Meanwhile, is it going to cause you resentment if you go there and hate it and he loves it? Will he listen to you if you decide you really do hate it and don’t want to continue?
That’s not something anyone can answer for you, but it has little to do with whether it’s a bad idea and much more to do with what both of you want out of life.