I just migrated our entire company off of github to gitlab self-hosted. So far so good. It's entirely behind tailscale so we don't have any SSO tax from gitlab and all of our CI runners are on EKS + an on-prem cluster with GPUs. If anyone needs help or motivation accomplishing the same, just reach out!
Does self-hosted support SCIM or something else easy to connect for automatic user provisioning? Or do yal do account creations manually?
Did you also try Forgejo? If so, what are the differences between the two? I didn't even know GitLab had a self-hosted option. I assume it's probably better for Enterprise-grade projects, and dealing with CI/CD, actions, etc. But for smaller projects that just have issues and PRs and minor test suites, I assume Forgejo is the better lightweight option.