Following #lemmy communities from #mastodon has gotten much better
Version 19.4 introduced automatic hashtag-ing (see https://lemmy.ml/post/16585416)
Posts get federated with a hashtag matching the community name.
The important bit is that comments to posts *don’t* get the tags.
Which means you can follow the corresponding tag on mastodon and get a feed only of posts.
EG: #asklemmy
If you’re starting a community, giving it a unique enough name could help prevent overlap too.
1/
@simpleguy @fediverse
Unfortunately it’s unlikely to come soon as mastodon is a while away from implementing groups and are doing it their own incompatible way.
This tag process works though and I’m happy the lemmy devs implemented it.
Spread the word.