My go to example is my laptop’s keyboard backlight works exactly as expected from tty terminals.
I’m willing to limit my hardware options to the small subset that works with OpenBSD in return for having an OS that I can trust. Fortunately, this small subset includes the X1 Carbon thinkpads which are really nice.
I’m experimenting living with a combination of iPad + openBSD thinkpad - iPad for things like Netflix and Zoom where the business isn’t interested in supporting openBSD, and my laptop for everything else.
PS: Bluetooth is a terrible protocol and should be nuked from orbit out of existence. None of my 5 bluetooth headphones (from different vendors and different price ranges) can figure out which device I was last playing from, my car repeatedly steals my bluetooth audio and starts playing music without my consent every single time, audio stops streaming randomly despite my phone/iPad thinking that they are connected and continuing to play - I can rant for a long time. I genuinely respect openBSD developers for deleting the bluetooth stack to improve the OS quality.