I have installed a few chat applications through flatpak (teams with Edge and “Whatsapp for Linux”). In both cases I can’t paste images or drag files. I can paste text and I can upload files through the GUI. I imagine this is likely due to a permission that can be set through Flatseal. Anybody can help?
I’m actually having issues pasting images on WhatsApp web on regular Firefox. That might be a thing with WhatsApp itself.
About the permissions, if you are pasting an image that is in your computer, then the app needs to be able to read the file from the computer, aka read the file from disk.