I will later see if I can convince the gearlever dev to add aisap support, since that app targets flatpak users.
Also during testing Ivan discovered something interesting in fedora, sometimes some of the xdg-user-dirs variable for some reason were being defined as $HOME/ with a trailing slash instead of $HOME/Scrivania (desktop) for example, even though they were clearly defined in the conf file of xdg-user-dirs.
am has a check in the sandbox script that unsets these variables and makes aisap use their default location when that happens to prevent giving full access to $HOME, I don't know if flatpak has similar measures in place.
Very true, but there are some packages not available. And Appimages have partial updates now, and dont need huge libraries but just the stuff they need.