When a merge request in main repo contains a new pointer in a submodule we have to manually merge these MR's and review the changes in submodule locally.
Maybe there is any way to make it more convinient? At least some way to review submodule changes inside web Gitlab? Maybe some subrequests or smth.
As of 5 years of they said that they said, "this isn't a feature we plan to support".
https://gitlab.com/gitlab-org/gitlab/-/issues/19676
But I agree that would be an awesome feature!