Are you sure TikTok allows gambling or certain gambling to be promoted? I watch a couple streamers who have put videos of their wins on TikTok and not so long after found their accounts banned. I'm not sure if they do not allow bitcoin gambling, casino gambling, slots, or what but the only content from these streamers are gambling content.
It's not allowed.
Your access to and use of our Services. You may not use the Services to upload, transmit, distribute, store or otherwise make available in any way (including for the purposes of creating and/or streaming content) any User Content that:
is relating to or encouraging money laundering or gambling, or otherwise any activity that is unlawful in any manner whatsoever;
Instagram still allow gambling, but with some requirement.
Accounts promoting online gambling, online real money games of skill or online lotteries must get our prior written permission before using any of our products.
So I guess people who promote gambling in Tiktok just waiting their account get banned, since the @OP have share those gambling streamers in this forum, the best way for us is to report those accounts lol.