The v2 developers said they were already planning on not being as free with copyright content use, so this shouldn’t be something to worry about. I read that they weren’t going to allow it as much in one of the announcement posts, but I couldn’t quickly find which one. I used to use musical.ly but I forget how that system worked. I’m not sure if users there were able to monetize their videos or not, but if they were, maybe a similar system could be implemented.
There’s always the donations system. Perhaps ads might be a part of it too, but I think as creators its up to us to figure out how to monetize this system for ourselves. Some big time youtubers had to learn this the hard way