@linmob Oh, I've also worked on a MR that makes the information in the desktop file superfluous by using more specific information from the metainfo XML: https://source.puri.sm/Librem5/phosh/-/merge_requests/858 - that's not yet finished though but will allow more specific filtering for e.g. tablets or TVs.
(we'll keep parsing of the existing tags though for backward compatibility)