it takes a long time to register and I say "what" but I'm just buying time to respond.
This is how I realized I was experiencing APD when I learned about it. It helps explain some of the masking that I do.
Funny part is I play music and its not usually a problem and I play by ear a lot. Occasionally it does trip me up, but the better I get, the less of an issue that is.
I had this exact same problem when I switched from windows to fedora KDE a couple months ago. The solution for me was to install the proprietary nvidia Linux drivers. The OS has some already bundled, but I found some other people online have this issue until they switched drivers and I gave shot. Im on my phone so I dont have any links or much else to give you rn, but if you need me to provide more info I can when I get back on my PC.