I have noticed several applications that I installed from either Ubuntu Software or snap directly, don't work. I use Ubuntu 20.04, which I assume can be part of the problem.
I downloaded Space from Jetbrains and Standard Notes from these locations and I can not get them to work. When I use their commands in a terminal they do not do anything and when I try to start them with sudo, I get:
mkdir: cannot create directory '/run/user/0': Permission denied
I am really lost with this one, as I am unable to find similar cases on the internet. I assume the problem could also be in the display drivers, but I remember that Standard Notes just stopped working one day. I did not changed anything about the display drivers, so I do not know what the problem can be.