You are free to post whatever you want on a different platform. Banning TikTok and its algorithm has nothing to do with free speech. It's funny this always gets brought up, like what is TikTok allowing you to say that you can't say on FB, YT, etc?
Not a problem as long as there are other tools to speak. You have no right to YouTube or Facebook because neither are necessary for your free speech. This isn't complicated.