Apparently, Windows 11 has decided to take over my keyboard's (and mouse's) lighting. My old lighting configuration is just gone now, and there's apparently no way to get it back, especially since I can't find a per-key assignment function like there was in the G Hub application (which no longer has this and hard-redirects me to Windows settings). fuuuuuuuuuuuuck this
update: "Use Dynamic Lighting on my devices". Turn that shit off.