Are you planning to do some gaming on Arm devices? You need to take a look at the box86 and box64 projects, which are really quite impressive. Since the majority of software (especially games) are built for x86 processors (the usual Intel / AMD crop), Arm needs something stuck in between to get them running and that's exactly what these projects do.
Split across 32bit and 64bit, box86 and box64 both recently had major updates and a fun highlight on both is that the developer noted they have plenty of fixes and improvements to get both Steam and Steam Play Proton working — so Linux gaming on Arm is about to see a nice boost with these.
It's a good way to try out some more gaming on devices like the Raspberry Pi, or other popular tiny computing systems.
Many other improvements came along, see the release notes on both:
At some point soon, I'm definitely going to need to see how well it runs on my own RPi4. Sounds like it's getting quite exciting!