This is why kbin exists. It's a Lemmy/Mastodon combo service.
Lemmy
Everything about Lemmy; bugs, gripes, praises, and advocacy.
For discussion about the lemmy.ml instance, go to !meta@lemmy.ml.
TIL been here daily for some time now and didn't know that.
No, but it is possible to follow a PeerTube channel.
Are you sure you can follow Lemmy users from Mastodon? Is it not only communities that you can follow from Mastodon?
yes Mastodon allows you to follow Lemmy users, here's mine for example
https://mastodon.gamedev.place/@Die4Ever@programming.dev
and as you said, communities work too
https://mastodon.gamedev.place/@stauf_mansion@lemmy.mods4ever.com
No, the devs have explicitly stated they don't want to add following users to Lemmy.
That's what I recall. I wish you could...
You can follow a community from Mastodon. But not the other way round currently iirc.