GH Desktop can't open file manager on Linux Mint

[Ricardo Fernández Serrata]

Rudxain#1

Minimal repro:

0. Install Linux Mint 21.1 Cinnamon
1. (Possibly optional?) Create a non-admin ("Standard") user, then login to it
2. Install .files (git-less alternative)
3. Download the GHD AppImage 3.2.0, then open it
4. Click "Help", then "Show logs in your File Manager"
5. (nothing happens)

(The button does work when not installing .files)

[Ricardo Fernández Serrata]

I've noticed this bug doesn't happen in the v3.2.5 .deb release (the one installable via apt using shiftkey package-feed, not mwt). The AppImage releases are known to have bugs related to xdg-open.

I guess I should reopen shiftkey/desktop#870