hey so guys, steamdeck owner here you can install enpass from the terminal, run these commands:
sudo steamos-readonly disable
cd ~
mkdir apps
cd apps
sudo pacman -S --needed base-devel git
git clone https://aur.archlinux.org/enpass-bin.git
cd enpass-bin
makepkg -sri
Done!
PRO-TIP: If you got either Chrome or Firefox when running the sync and authorize restore, once you click open-xdg, CLOSE THE BROWSER and Enpass will continue the sync, unlike Windows, it will sit there waiting until you do...
You're very welcome!