Favorites bug in some servers other than Mastodon.social

I tried to migrate from mastodon.social to vivaldi for the 1000+ character limit. I found out that it doesn’t display favorites from accounts that aren’t on vivaldi. I made an account on toot.cat and the same thing happened. Also I can’t see the trending section in my toot.cat account. Isn’t mastodon supposed to show faves from all servers? Why is this happening?