If it’s a modern, quality bike from a reputable brand, virtually all the parts on it are standardized and used on other bikes as well. A bike brand, such as ‘Specialized,’ mainly refers to the frame. All the other components are the same ones used by other similar brands.
I don’t have TikTok myself but having seen my friends show videos from their screen I think it’s absolutely hideous how half of the video is covered with comments and buttons and shit. That would be a total dealbreaker for me.