A huge amount of Indie games do not require a powerful (or even decent cpu). Many of them have Linux and Mac ports. Those are the same kind of games whose developers do not have a lot of spare resources to stay on the endless treadmill of deprecation.

It also kills any hope of wine powered support for proton in steam as many many windows games will be still 32 bit for a very long time (mind you, metal already had put a big dent in that).

Interestingly Linux users are indirectly getting affected by this: for many developers supporting Linux was just a byproduct of supporting macOS. As the latter is being dropped, support for the former is getting harder to justify. Luckily Proton seem to be a very viable alternative to native games.