Comment by Nemo_bis

Mastodon v4+ replicates some of the issues with Twitter by giving prominence to highly followed accounts. This is considered "easier" for new users coming from elsewhere (in the sense it's easier to be bombarded with posts you didn't need, than to go look for what you actually need).

The issue is tracked at https://github.com/mastodon/mastodon/issues/18128 .

So, even on Mastodon you still need some self-care. Avoid following popular accounts, block and silence generously.