Similar with forgejo.
I mirrored all gh then flipped the ones I was using the most.
The biggest win was on running apple runners in my mac, so the free gh actions can do other stuff.
Getting better, more reliable and faster CI was such an underappreciated gain (from me at least) when moving to a self-hosted git platform. What used to take ~40 minutes end-to-end (from pushing commit to having release binary ready for three platforms) now takes less than 10 minutes, and seemingly that whole slowdown was causing me more headache that I think I was willing to admit at the time.