While I don't have first hand experience I do know a case study regarding this topic 😅
One of the largest creators and streamers now a days, CaseOh posted 22 tiktok videos pretending to be live and reportedly got 10k tiktok followers overnight (60k+ in March of 2023 he started posting in Feb 2023) and now posts 3 clips a day I believe so anyway.
He was then able to use the traction from and on his first twitch livestream had 70 - 105 viewers