Hank Green has a great video[0] on the difference since he is on both platforms, and unless there is more compensation to the creators, they will get burned out chasing the high of the occasional viral video.
People always say X network is going to go the way of MySpace, but when’s the last time that happened? I wouldn’t say any of FB, Twitter, Snap, Instagram have died off the way MySpace did. Certain age groups may have migrated to other platforms, but these networks are so ingrained and established that millions of people can leave and it doesn’t matter.
There’s still a huge population using all of the networks and unless a new app provides some new unique feature like Snapchat and TikTok did when people first started using them, I don’t see anything popping up to replace them.