The artifacts storage is that one that's just tough to figure out when dealing with large builds. We have already offloaded all our CI/CD to our own hosted GitLab runners, but apparently storing the artifacts afterwards (which by default GitLab always stores the most recent builds) MUST use their storage, we can't offload it to our own servers.
The instructions for removing the most recent artifacts also just never works (https://docs.gitlab.com/ee/ci/pipelines/job_artifacts.html#k...)
So in our monorepo with multiple Windows and Mac applications, we are now stuck with lots of GB that are just there, currently unable to delete.
This is causing us to dramatically revisit our strategy of using GitLab and might force us to other tools.