android app saving created effects from others

hi just wondering how the save of the effects we download from others on the app get saved.
1>Is the app the storage container and a limit is set by the app(if so can this be changed?) or dose it actually store in the controller memory and that is why the storage is limited
2> ( if so can eventually app be updated to allow option of storage to like "save to" and create this option in the app set up tools area?) as to number of effects saved.

I find it bit frustrating as I may have reached this "random?" limit and find another good visual effect but now get told cant load, at the limit? so now have to note the name of the effect(to find later and that can be fun as list is not in any particular order?)
Just looking for some comments/answrs on this ..thanks :)

TikTok is a social media app primarily used for creating Fireboy and Watergirl Game and sharing short videos. It offers a wide range of effects and filters that users can apply to their videos. Many of these effects are created by other users and can be saved and reused.