How do people make game parodies with the music?

I've made some Skyrim IRL type videos that use multiple tracks of the game's music, and they work great on IG and YT, but TikTok mutes the audio because it detects the song. (And I can't use one from the library because it needs to change tracks at key points) But I've seen other posts on TT with game music edited in and TT allows it. How are people doing that?