PMM can be as simple or as complicated as you like. I, personally, keep it quiet simple by just using it to create collections that Plex doesn’t offer (e.g. “Best Picture Oscar Winners” or “Trending Movies this Week”).

You can set it up to also add ratings directly to the poster so you don’t have to enter the movie screen to see that information.

I know there’s more but I didn’t really need anything else out of it so I stopped exploring there.

There’s also a Discord where everyone can share what they’re working with. It’s probably worth a look if you’re interested in what it can do.

I’ve got three. I started with a beehaw account but now have one at sh.itjust.works after beehaw defederated and a third at lemmynsfw for…reasons.