It’s not a miniscule gripe tho. Snap is still broken for many users, and relying on it for something as critical as a web browser is asking for trouble. Experimental technologies like snap should be opt-in for users who are willing to deal with the issues they create. Do they really expect a novice to see firefox’s filepicker not behaving correctly, and think “Aha, an XDG desktop portal issue! Let me drop everything I’m doing and go troubleshoot that” ? Ubuntu is meant to be linux for normies, they don’t have the time or the knowledge to deal with snap.