Yes if a creator’s main living can be shifted into Patreon or their own independent subscription service, THEN you will see them move off of YT because it actually works against them at that point. Mark Spagnuolo aka The Wood Whisperer has made this transition. He’s been around years (decades?) with awesome quality woodworking content. He’s found independent sponsorships. He’s created his own subscription service and takes direct payments but also uses platforms like Patreon. He plays the social media game very well. He travels to trade shows and keeps up with a podcast. He is the gold standard for what it takes a creator to move off of YT and still make a living IMO. His wife is a driving force behind making the business work and I think it’s a full time job for her too and probably a staff of employees. Mark used YT in the early years to build an audience but he does very little at all on YT nowadays.

He also has very little out there now that is free 🤷‍♂️

You can’t have it both ways