I miss multireddits, a workaround I found is to create accounts on different instances and subscribe to different communities with each account ie
News trabic@lemmy.world
Memes and other bullshit trabic@lemmy.one
“Math” trabic@lemmynsfw.com
Then just login to which ever one I’m looking to browse. I don’t think this will screw with the fabric of the fediverse, is there any reason I shouldn’t?
Why not just have one account and access communities across instances with federation?