I bought a lifetime sub some years ago, and has used it for a couple of my projects.
While I would usually just set up the domain in my Proton/Tuta (or even just Cloudflare forwards), it's nice to have a place where I can allow my team members to login, for the slightly bigger projects.
Only downside is that the owner can seem to lose his cool sometimes.
If you find contributing to OSM a chore, you might wanna look into "StreetComplete". They have managed to "gamify" contributing to the database.
https://f-droid.org/en/packages/de.westnordost.streetcomplete/
It's also available on PlayStore.