So far it seems based on the stream tests that Afreeca is the easiest site to transfer to, but most are choosing Chzzk because its backed by Naver and doesn't have a bad rap like Afreeca despite the fact Chzzk is still in beta and they are only getting around 20% of their viewers to come over. Sooflower even tried putting her Twitch chat in emote only mode to get viewers up on her Chzzk, but she still had less then 500 viewers while on Twitch she still had about 2500. What's even funnier is that even more risky booba streamers like Sorammmm & E_Chi_h are choosing Chzzk over Afreeca and get mad if you ask why, even golaniyule0 doesn't want to go over and instead is doing more 19+ on her Likey & FlexTv. Really shows how shot Afreeca's reputation is in Korea despite improvements and having more viewers and way easier foreign viewer integration, there really must have been way more shady things going on that we still don't know about. I suppose the long term upside for us is that if Chzzk continues to not get views and the yeocams still don't want to go over to Afreeca then more will start doing 19+ content like golaniyule0 or at least at the level of woohankyung's recent streams.
As for the subs and donos thing, most Twitch Korean female streamers had chats full of subs and bit leaders, the only people still pushing the narrative that Koreans don't sub are people that don't actually watch Korean streamers or perhaps only LoL streams because Korean male streamers do get way less gift sub bombs in chat. I remember this Croatian streamer dude that got famous in Korea and he got really salty at his Korean viewers for never subbing him & ended up quitting.