One way to deal with this issue in Mastodon is to follow hashtags instead. Personally, it is also not for me, but it is still better than following individuals.

I feel like it’s more of a client issue than a Lemmy issue. We could imagine having clients that correctly support crossposting by having tabs for each comment section.

https://sffa.community - for fantasy and science-fiction related stuff

Same here, I only post on jlai.lu and other french communities for now.

We need to have an active French community :-D