Not downtime, but some kind of issue, yes [1]. However github is not much better [2] and gives much less detail and fewer updates. Bitbucket is more solid recently [3] (but wasn't really better than the others in 2020)

1: https://status.gitlab.com/pages/history/5b36dc6502d06804c083...

2: https://www.githubstatus.com/history (don't get fooled by them collapsing the incident list after three per month)

2: https://bitbucket.status.atlassian.com/history (also collapses after three per month)