This.

What eventually kills these platforms is “death by thousand cuts”. Enshitification, controversies, legal problems will alienate users bit by bit. Competing services will then make some people visit less and less until they stop coming at all.

These platforms are competing for peoples attention/time which is finite resource.

While Meta might have ulterior motives for fediverse integration this might also be just one way to comply with Europes new DMA regulation.

Thats likely due to lack of algorithms with goal to keep you browsing forever. Twitter likely harvests all the data it can get from you when you browse twitter. They can also track your browsing habits using your IP (among many other things) and sites that have embed twitter content like share button or embed tweets.

Finding people to follow in Mastodon mostly happens by:

• Search topics using hashtags
• Randomly browsing local feeds of different instances
• Randomly browsing the federated feed
• Randomly browsing local feed

There are instances for different interests like game development, art, information security, foss etc so there’s a lot of places to dig for good content.