I wonder what makes them choose rk3588 considering rockchip abandoned the software support as most of software maintainer are the communityπ€. Not to mention one of the maintainer that brought fairly recent kernel for rockchip SoC also went away.
Previously I had Orange Pi 5 that happen to have this rk3588 SoC, unfortunately once I discovered that the gpu driver is lacking I went back to x86 based solution (retro emulation station setup).
From my experience, I can install several repack without any issues on my Mint install (using wine). If you overwhelmed, the easiest way is to add the .exe of your game as non-steam game through the steam and the proton will handle the rest assuming you won't find dependency issues, if you stumble across problem try to search protondb for solution.
Personally I run my games with wine because I couldn't figure out how to make use of bottles and lutris (ye I'm weird).
EDIT: Also you can run your modded games on Linux, so far I have tried modded nfs mw (2005) with hard+, underground2, and new vegas, they are works like on Windows.
If shit happen, rtfm. gl op on your journey!