Gitlab is pretty decent. Honestly I would say there's not much between GitHub and Gitlab. Gitlab's CI is more powerful than GitHub's IMO, but the UX is a bit worse. But it's really marginal.

They're both slow and have tons of long-standing missing features. But they're ok. I'd definitely rather use Gitea/Gogs/Forgejo, and maybe Tangled if it supported normal setups (e.g. private repos).