That would be my guess, I know personally yesterday I finally setup Forgejo and today I plan to evaluate its runners or even just using a dedicated CI like woodpecker.
Not fully sure what I will do regarding any open source repo's yet, but at least anything private I am already in the process of moving away.
This was something I already wanted to do for privacy concerns (especially possibility using private repo's to train AI) so this was just the push I needed.