I have to use #Gitlab CI at $work, and I'm surprised how clunky it is.
CI Components are not real components, they just dump YAML into a global namespace, needing hacks to customize them.
There's no reusability at the granularity of Github Actions (other than concatenation of bash scripts).
I keep running into dead ends. I check Gitlab's own bug tracker to see if anybody had the same problem: created 5 years ago, 200+ thumbs up, no official response.