gitlab bot for nagging people to enable the 'allow commits from members who can merge on the target branch' checkbox
https://docs.gitlab.com/ee/user/project/merge_requests/allow_collaboration.html
Unfortunately there doesn't seem to be a global setting to make this the default.
Without it maintainers can't rebase and have to nag/wait.
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information