According to the new rules, on-stream logos are to be shrunk to 3% of the screen size, and burned-in video, display and audio ads are no longer allowed. What is allowed on branded streams are channel page panel ads, product placement, links in chat, discussing/unboxing products, and playing sponsored games.
Peertube might be an option; it’s basically an ActivityPub server that’s intended for video and stream hosting, by my understanding.