I'm not OP, but; Forgejo is much lighterweight than Gitlab for my usecase, and was cited as a more maintained version of Gitea, but that's just anecdote from my brain and I don't have sources, so take that with a truckload of salt.

I'd had a gitea instance before and it was appealing insofar as having the ability to mirror from or to a public repo, it had docker container registry capability, it ties into oauth, etc; I'm sure gitlab has much/all of that too, but forgejo's tiny, tiny footprint was very appealing for my resource-constrained selfhosted environment.