Check out Keychron’s mice. They’re wireless but you can plug in the cable and use them that way. RGB is a physical button you press to switch which mode you want or turn it off completely. DPI and polling are also physical buttons on the bottom of the mouse.

Check out Tuxclocker

Have you tried a different version of proton? GPU temps seem OK?

They’ve been a thing as long as I can remember

Unfortunately Lawnchair hasn’t been well on Android 15 for me. Hopefully there’s an update coming soon