https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/1643706
With Flatpak one can just do "flatpak override --filesystem=path" and the problem is solved.
In my opinion Snap's core design is fundamentally flawed. This starts with the fact that the sandbox is not mandatory and user-configurable (unlike Flatpak) and ends with the walled garden that doesn't allow for third-party repositories.
The main issue: I no longer know which distribution to recommend to non-technical people since Ubuntu started to enforce broken snap packages.
The issue why replacing Ubuntu is so difficult is that most supposedly "beginner-friendly" distributions, like Linux Mint, don't notify their users about new distribution releases or about the fact that the current release has reached end of life.
Since most users don't follow #Linux blogs, they might use an end of life OS for online banking without knowing that (security) updates have stopped.
#Ubuntu has had a release notification and upgrade tool since version 5.10: https://web.archive.org/web/0if_/https://wiki.ubuntu.com/DapperUpgrades
The issue why replacing Ubuntu is so difficult is that most supposedly "beginner-friendly" distributions, like Linux Mint, don't notify their users about new distribution releases or about the fact that the current release has reached end of life.
Since most users don't follow #Linux blogs, they might use an end of life OS for online banking without knowing that (security) updates have stopped.