On an entirely different note, as far as I’m aware secure boot should have zero noticeable performance impact, and if it does, that means that something is going horribly wrong. Guides tell you yo disable secure boot because it’s annoying/semis complicated to administer and makes installing out of kernel modules harder (like the nvidia drivers), not because it has a performance or stability impact on the system.
I’ve had a lot of regressions, almost entirely around graphics drivers. I have like the worst case scenario. A 4K laptop (also dell) with an nvidia GPU in a prime configuration with the Intel graphics. Until very recently everything was laggy or unstable or unsupported. With recent drivers things have been more fine.
I also have weird audio issues like the card sometimes selecting a non available profile when disconnected from HDMI (hence why I asked about that)
CUPS has been really stable for me. Idk
Also yeah, docks seem to expose all of the bugs, even on windows. For the longest time I couldn’t get my keyboard to work if booting with a dock, and I still have weird resolution issues with booting while connected sometimes.