Gitlab in particular very much marketed their expansive free tier as an alternative to GitHub, and very much targeted Open Source projects migrating to them.

This is why I only use Open Source, because if the SaaS company decides to change their pricing structure, I can always move to a different host or host it myself. Hence, I only ever used features on Gitlab that were in their Open Source core product. And why I am looking for an alternative that offers some of the features Gitlab has locked behind their proprietary offering.