There's still tons of devices where Linux doesn't work properly with them.
My Intel wireless cards cannot maintain a 6ghz wireless connection for shit despite some of them being over 5 years old. And Intel. Latest stuff, older kernels, none work well. Oddly whatever version of Fedora I had worked the best. My wifi wasn't unusable when 6ghz was an option. It only dropped to 5/2.4ghz once a minute instead of every 5-20 seconds.