Comment 33 for bug 1971168

(In reply to Alexandre LISSY :gerard-majax from comment #12)
> So, while using the `smb://` from file picker is blocked and seems not to be hideable for the moment, directly using the mount point should work. if you navigate through the UI via `Other Locations` -> `Computer` -> `/var` -> `run` -> `user` -> `XXX` (your user id) -> `gvfs` −> the directory matching your mountpoint -> then you can access your remote location.
>
> This is working for me. While not optimal, at least you can make use of the remote file server.

Thanks for investigating further! I can confirm that this workaround works for me as well. Not sure why I didn't try that before (see next paragraph).

Unfortunately this entire issue here is yet another sad example for me of a major functionality regression on desktop Linux caused by changes behind the scenes. Going through `/var/run/...` is something that has not been necessary in years with Firefox packaged in APT. And seeing that [this](https://github.com/flatpak/xdg-desktop-portal/issues/213) is already open for four years, I have a feeling we'll see a fix in 2030...

In any case, at least the path forward is clear now.