I like treating Discourse as a separate app rather than opening in my browser, because I end up with a zillion tabs. And I could install as Firefox PWAs, but I like the overview with notifications.
But if I use the in-app option, the topic title and search fields remember everything I’ve used ever on any site, and the gigantic menu of these useless options gets in the way of actually writing new posts.
The Firefox PWA is fine — I haven’t tried to make Chrome PWAs.
To make things more complicated, it seems to only happen some of the time, and only pop up some of the time too, now that I’m paying attention. I dunno… computers are weird.