I would like a little box you could tick on games you have completed that will exclude them from the list of games, unless you tell the client not too. Tags don't really work for this purpose because I would have to tag every game as "not completed" and then remove the tag once I've completed it for it to function the way I'd like. Also, hiding the games is not ideal either.

As some folks have noted in separate threads, the program really needs a properly-implemented "not" filter.

Since that way you can tag your games as usual, add a "completed" tag to a game, then be able to exclude that tag and have it hide the game even if it still has other tags on it. (Currently it'll hide anything with just that tag but if the game has other tags it'll still show up when those are displayed.)

One workaround I found for the time being is just being diligent on slapping a rating on games you've played and then you can filter out rated games.

What i'd personally like is just a badge saying "Completed" when you mark it as so, with the option to hide those games if you so choose, so you can scroll through your full library and see what is and isn't completed without having to click it, or hide it.

yup, i want this thing too. after playnite it's really missing.