That's why I still use a ~15 year old Supermicro server chassis with desktop foot kit on it lol. I've upgraded the innards 2 or 3 times so far. Has 8 hotswap bays, tons of room. no fucking RGB or "windows" or any of that bullshit.
I just built an i9-13900K replaced the LGA1366 2P board in it. It's an astounding performance bump, to mildly put it lol. I plan on using this chassis with this setup for probably another 5-10 years before upgrading again.
The board having Gamer-RGB should not be a problem as long as you can disable it on the BIOS. It would be like any other "extra" hardware your board has that you don't use (for instance, extra headers for front panel USB ports you don't have, or more SATA ports than you need).
The case having a transparent side panel, on the other hand...