I periodically check to see if my phone has been adding apps when it self updates.
Today I learned that the TikTock app is almost a Gig. I have never used it and don't recall adding it.
Buhbye ticktock hello free space.
Hopefully things run better now
Using the app or not makes no difference if it's preloading content for you to watch when you open the app. It's called a data chache, or a video cache.
Again, your over the mark, just not for the right reason. You don't need a massive app size to steal your info. I can make an application right now that on the surface is a 50mb file, but requires permissions so it can see your emails, phone contacts, text messages, GPS data, etc... And you'd see an app that has about 50mb, not 900...