I love Gitlab because I love open source and competition but Gitlab either on-prem or gitlab.com has been having growing pains ever since I started using it around 2015.
And it seems to be related to scaling because it's always iffy problems like higher error rates or jobs not executing.
Either way, I love our on-prem Gitlab. It's free and it hosts over 200 projects, Gitops and the whole shebang. I'm just now beginning to use Kubernetes from it.
They will sort this out eventually.