[alexbeloi]

You and GP are talking about different things. As you say, Gitlab.com has been deteriorating and has continual performance issues, however Gitlab Core (the OSS project) has made big strides in the last year in adding features like excellent CI/CD integration, issue boards, merge request templates, web based IDE for quick edits, etc. For teams of people working together, these tools are really useful and important, less so for big community or solo projects.

Unlike Github, you can host Gitlab on your own server, to get whatever performance you're willing to pay for.