>Unless there's some kind option where youtube or twitch signs a contract with select creators and then hands them huge sums of cash upfront for the costs of future content production
For the record this exact thing does exist for bigger streamers. See Ludwig for example, he switched to YouTube exclusively because it was a better deal than his twitch offer.
I've seen paid exclusivity deals from youtube before (https://www.gamesindustry.biz/youtube-reportedly-paid-usd160...) and while I'm surprised they paid a streamer like Ludwig to defect I'm pretty sure those kinds of deals don't exist for 99% of the content that gets uploaded to the platform.
For the record this exact thing does exist for bigger streamers. See Ludwig for example, he switched to YouTube exclusively because it was a better deal than his twitch offer.