Any recommendations for an OSS maps app that provides tracks like Strava,l and Komoot?

Do you mean tracking your workout? If so there's Fitotrack on Android.

I'm working on something that is best described as Komoot meets Mastodon. Self hostable and federated. It's pretty early, and the UX is pretty bare bones still.

If you're keen on checking it out you should be able to find it in my recent Github contributions, following the link in my profile.