Try the .appimage version, at least vscodium is coming in many different formats. I personally avoid flatpaks due to size and permission issues (e.g. gimp can't use its special extra-featured printing panel, which makes it absolutely useless for me as an artist on a flatpak).
The VS Code/Codium essentially provide a separate development environment within the flatpak container. All the tools there, and the shell are separate from your actual system. There are some ways to work around this (https://github.com/flathub/com.vscodium.codium/blob/master/README.md). I gave up on the Flatpak and installed a native package. Containers are nice, but they have their limitations.
Try Flatseal.
Didn't work.
Probably it's not a permission problem.
Try the .appimage version, at least vscodium is coming in many different formats. I personally avoid flatpaks due to size and permission issues (e.g. gimp can't use its special extra-featured printing panel, which makes it absolutely useless for me as an artist on a flatpak).
If not a permission issue then it's most likely a PATH issue.
For example, for Cargo try this:
What kind of issues did/do you encounter?
The VS Code/Codium essentially provide a separate development environment within the flatpak container. All the tools there, and the shell are separate from your actual system. There are some ways to work around this (https://github.com/flathub/com.vscodium.codium/blob/master/README.md). I gave up on the Flatpak and installed a native package. Containers are nice, but they have their limitations.
Actual errors would be helpful.