xdg-desktop-portal-kde VS Flatseal

However, the actual dialogs and access points are provided by a backend, which differs from what desktop are you using. For example, Gnome uses xdg-desktop-portal-gtk, KDE uses xdg-desktop-portal-kde and so on.\ If there is an issue with the implementation of an portal, you need to find the backend you use and report it to them.

There is some code being worked on for the KDR settings portal: https://github.com/KDE/xdg-desktop-portal-kde/commit/77945523b854678d4ff9facb2acb5de8a43377f5

It looks like a kde specific issue. xdg-desktop-portal-kde has window sharing on its to do list.

And not only that, the idea of portals is, IMO, misguided. See this view/bugreport when a flatseal user understands that even though they restricted permissions to access a certain area, the flatpak, itself, can ask to open files there and if OK'd that will be allowed. Their expectation is that with the overrides say "no access" it means "no access even if the flatpak asks very nicely". https://github.com/tchx84/Flatseal/issues/196

Since you installed the programme via Flatpak, you should simply lack the necessary rights (https://docs.flatpak.org/en/latest/sandbox-permissions.html). You can extend the rights quite easily with https://github.com/tchx84/flatseal.

Yes, filed https://github.com/tchx84/Flatseal/issues/196 a while ago, got no joy.

One design feature than can turn into an issue in some scenarios (usually dev tools) is the permissions of a flatpak. In case I need to tweak things, I use Flatseal. I know you can manually do this from the command line but I don’t change permissions that often so I don’t bother learning how to do that.

Does the Flatpak Permissions Settings replace a tool like Flatseal?

What about flatseal then ? https://github.com/tchx84/Flatseal

https://github.com/tchx84/Flatseal (Also on Discover. For security reasons, the Discover store installs apps as sandboxed "flatpak" apps. This one is used to view what each up can do and change the permissions of apps. May be required if the sandboxing breaks something, though usually not required.)

I believe it does. As an example if I try running Godot from the Steam flatpak, it won't be able to see any of the contents of my ~/Projects folder unless I explicitly allow the steam flatpak access to that directory that via flatpak's CLI options or using Flatseal