Maybe it's be reasonable to script using the glab and gh clis? I've never tried anything like that, but I regularly use the glab cli and it's pretty comprehensive.
No need – it imports pretty much anything you can reliably import from GitHub, including issues and PRs (with comments): https://docs.gitlab.com/user/project/import/github/#imported...
No need – it imports pretty much anything you can reliably import from GitHub, including issues and PRs (with comments): https://docs.gitlab.com/user/project/import/github/#imported...