I have installed Bitwarden through its AppImage, and added a .desktop file to run it easily (and also to use a themed icon). Unfortunately, each time an update comes out, I need to manually update the file since it points directly to the older version...
my current desktop is a modified version of GNOME with a red accent color!! It took a lot to install because I also used Xfce a little bit but I prefer the classic new GNOME.