Good point, also to illustrate that open-source is not a panacea. It merely holds a higher potential for certain issues to be fixed/improved than.

I don't know why they basically copied GHA.

AFAIK because "act", the tool to run github actions locally, was there and there was no need to create something else. Also makes it easier for people to switch from github.

Also see https://docs.gitea.com/usage/actions/design