Files Deleted From GitHub Repos Leak Valuable Secrets

A security researcher has discovered hundreds of leaked secrets by restoring files deleted from GitHub repositories.
https://www.securityweek.com/files-deleted-from-github-repos-leak-valuable-secrets/

This appears to be an exploit against git repositories in general. I wonder if @Codeberg or GitLab have a possible issue as well.

I know Microsoft GitHub keeps your repositories after you delete them for CoPilot data, so maybe this is the issue.