Mostly that for me on Nvidia (proprietary drivers), although 555 broke my 2nd DVI-D monitor (which is admittedly old, but I don’t have any reasons to replace the little guy).
Nevertheless, I’m very set on getting an AMD GPU whenever I have to replace my GTX 1080 from 2017.
I’m unfortunately stuck with Nvidia for the time-being because I need NVENC.
Speed. Unfortunately (at least the last time I looked into it) NVENC still beats the socks off of VAAPI in render times and I’m sure Nvidia likes it that way.