In Germany Tiktok actively removes content mentioning LGBT issues. I very much worry about how Tiktok is Chinese controlled and they are already abusing it worldwide to remove things that they consider threatening. It's fine while it's still a relatively minor platform, but that will change as it gets market share.
Tiktok claims to have a billion monthly active users now. That puts them #4 in the social/public-user-generated-content category, behind Facebook (2.9B), Youtube (2.2B), Instagram (1.4B), and well ahead of the likes like twitter or reddit. I wouldn't call that a "relatively minor platform".