If you are trying to mark something sensitive out, make sure that you are deleting the actual text or convert the PDF to a flat image after. PDFs can store information in text and images, so if you just draw over some text thinking you are marking it out, there is a chance that the mark out is just a image layer sitting on top of the sensitive text. A way to check this is opening the PDF in Firefox after and toggle Reader View (button in the address bar or F9) to see if you can still see to marked out information.
I don’t have V-Rising, and I’m sure a lot of this stuff is hardware dependent, but according to a couple of reports on ProtonDB, there might be a kernel bug causing issues with it.
https://www.protondb.com/app/1604030
I just installed bazzite on my LCD Steam Deck this week and it has been pretty solid so far, but obviously the hardware support for it is top notch thanks to Valve. I didn’t have really any issues with regular SteamOS either and just wanted to try something a bit more customizable.
And really Linux gaming on the Steam Deck feels like cheating, especially compared to trying to run games via wine before the proton days.