use Stream display ads instead of prerolls on live content ,keep prerolls on VODS my experience on twitch lately is that i dont go looking for new content creators much due to prerolls annoyance . you cant treat twitch like a Video on demand service you have to treat it as a live service , and you don't interrupt a live service with ads , SDAs are a great way not to interrupt the live broadcast . and midrolls controlled by the content creators as well . the issue with midrolls is that sometimes the midrolls are longer than the break the streamer takes this needs to be addressed as well