Comment 6 for bug 2046477

It solves several problems, but not all.

With regard to unprivileged user namespace mediation it should fix
 - mscode
 - nautilis
 - devhelp
 - element-desktop
 - piphany
 - evolution
 - keybase
 - opam

the element-desktop is still known to have some issues, which are on the snapd side. It needs to add some interfaces etc.

there is a beta3 coming early next week with additional fixes coming. The full set won't be finalized until beta3 is rolled this weekend.