I don’t know if Gitlab is an industry standard, but I’ve never heard of Forgejo. I worked for a headless CMS company and the only three providers we ever had requests for were GitHub, Bitbucket, and Gitlab. Gitlab is big enough to be generally adopted by governments. I think it’s fair to say it’s at least a lot closer to being an industry standard then Forgejo.

(Aside: I would likely never use Gitlab by choice, and would consider looking into Forgejo)