Cannot save a file as sudo on Fedora

[carbon-starlight]

Describe the bug When I try to save a file:

Failed to save 'evdev.xml': Insufficient permissions. Select 'Retry as Sudo' to retry as superuser.

I press [Retry As Sudo]

Failed to save 'evdev.xml': Unable to find pkexec or kdesudo.

It looks like the algorithm was written for KDE and doesn't support GNOME.

Please confirm that this problem is VSCodium-specific

• [✗] This bug doesn't happen if I use Microsoft's Visual Studio Code. It only happens in VSCodium.

Please confirm that the issue/resolution isn't already documented

• [✓] I checked the Docs page and the Troubleshooting page and my issue is not mentioned there.

To Reproduce Steps to reproduce the behavior: Open /usr/share/x11/xkb/rules/endev.xml, edit and try to save it. Should(n't) work with any sudo-only-edit file.

Desktop (please complete the following information):

• OS: Fedora GNOME
• Architecture [x86_64]
• Version [1.87.1]
• App Manager [installed with the default GNOME market]
• Sandboxed [Flatpak]

[carbon-starlight]

It seems like a mainstream branch (VSCode) problem. Submitted an issue there.