> Why not use Plausible self hosted (it's open source and free)? "...but it's not actually free if you have to spend many hours setting it up and maintaining it"

Not really. For example I use Plausible self-hosted through Coolify (open source Heroku alternative) which has a one click add service feature, it has quite a few services including a full blown Nextcloud instance too I believe. It works well because it's all Docker.

I don't have to worry about it after the one click. It even auto updates.