A bug?

Ive had this bug for over a year now. Switching accounts doesn't fix it, deleting the app and reinstalling it doesn't fix it. When ever I am watching a video from my DM, likes, favorites, reposts, search ,etc and I press the back arrow, it just takes me back to the FYP and refreshes it instead of taking me back to the page I was on. This doesn't happen on my laptop or my IPad. I have a galaxy s23 and I've asked other android users if they have this issue and they all say no. The only temporary fix i can find is by going into my phone's settings app and pressing force stop on tiktok. But this only fixes it for maybe like 10-15 minutes. Anyone knkw of any solutions.

I do have battery optimization for tiktok off.