It's hard for me to articulate exactly why but I really dislike the information layout in GH Actions. Compared to other CI/CD tools, it's harder to debug problems or get a sense of the state of a pipeline. Part of the problem is the number of clicks it takes to look at various step logs. Some of the controls are unintuitive, but maybe that's just me.
Their comment system just doesn’t feel right compared to Bitbucket’s either - I think it’s the distinction between comments that are part of a review, versus comments that are ‘just’ comments