I'm a bit confused what you mean. I have to use GitLab for work and don't see much difference. Some UI elements look a bit more complex than on GH but other than that it's working the same way. Less buggy as well.
Personally I host forgejo for my private apps and have had no issues with that either.
It really is… I’ve worked with Gitlab for years and moving to GitHub was like a breath of fresh air, everything is much less cluttered. Not saying it’s perfect, but GitHub just feels simpler