In the case of Instagram: You show the videos from the people you follow on instagram, then no more short videos at all. Possibly a search box.
If you search on youtube then it can rank any way it wants, just not use e.g. anything from the viewing history. No "related videos" column. That's what YouTube used to be. But YouTube (unlike TikTok) worked well before it had rabbit holes.
For TikTok the situation is worse. Their whole app just doesn't exist unless you have the custom feeds. This would make YouTube be 2010 youtube, Instagram be 2010 Instagram (great!) but it would effectively be a ban of TikTok's whole functionality (again, great!).
If you search on youtube then it can rank any way it wants, just not use e.g. anything from the viewing history. No "related videos" column. That's what YouTube used to be. But YouTube (unlike TikTok) worked well before it had rabbit holes.
For TikTok the situation is worse. Their whole app just doesn't exist unless you have the custom feeds. This would make YouTube be 2010 youtube, Instagram be 2010 Instagram (great!) but it would effectively be a ban of TikTok's whole functionality (again, great!).