The Lemmy Frontpage gets cluttered really fast. Is there any way to get a better overview? Maybe a compact view without pictures. Something ike old.reddit or Hackernews.
And is there any way to group certain communitys? Similar to reddits “multireddit” feature.
On Android, Jerboa has a “list” style post view that may be more to your liking that the default card views.
There’s no multireddit feature currently. I don’t have a link handy, but there’s a GitHub issue for it though.
In general, I think you’ll find that Lemmy lacks many quality of life features you love in the reddit ecosystem. It’s a younger project, and less well funded. If you have a developer background or ability to learn, you may be able to help… but it doesn’t have the huge variety of apps and interfaces that reddit does, and you’re not necessarily going to be able to replicate a highly personalized UI experience terribly soon.