How does it stack up against traditional package management and others like AUR and Nix?
Good that Chromium does that, but this means if it doesnt use portals many things will be broken.
The host access is not actually everything
These directories are blacklisted: /lib, /lib32, /lib64, /bin, /sbin, /usr, /boot, /root, /tmp, /etc, /app, /run, /proc, /sys, /dev, /var
Exceptions from the blacklist: /run/media These directories are mounted under /var/run/host: /etc, /usr
Portals need a change in the app code that is not huge but differs from other packaging formats on any distro and OS. So it sucks that its so slow but that has a reason.
The host access is not actually everything
Not as restrictive as chromium’s unveil.
For home it even restrict to the downloads folder, not accessing the whole home directory.
Yes that only works for browsers and would completely break image viewers, document editors etc
