I started at kbin and it having more integration is one of the reasons I did. If I was in the group who made the fediverse with my 20/20 hidnsite. I would have pressed for a user focused thing. Have light servers that do the user accounts and config for many services. Hopefully this would make it even easier for somone to self host their user config. then have the various services and just do something like saml and don't even copy over the data. Make communities back upable just like user config and federation would be more of a shared backup thing if anything although user servers would get updates on whats on the fediverse. something like that. then I would mention with my foreknowldge how trust cafe does the rank everything thing.

Friendica.

In theory, it's perfect, and just what I think the fediverse should be, but it's terrible to run as an admin.

I see content from Lemmy, Mastodon, Piefed, and Peertube from the people/communites I follow from my Mbin. Maybe you need to try to search for more people/communities?

Recently I added the functionality to follow other people to PieFed (not just join communities, as before). This brings Mastodon content into the main feed mixed in with content from Lemmy.

It's still a work in progress but I'm aiming to create what you're asking for here.

More info at https://piefed.social/c/piefed_meta@piefed.social/p/2183805/piefed-v1-7-is-released-following-people-faster-browsing-smarter-moderation

Friendica does what you're looking for.

Edit: err... It does that in terms of accessing content. But you can't control multiple accounts from friendica (with the exception of blue sky). So you could comment on Pixelfed posts but not make posts to a Pixelfed account.

The fedilab app kind of does this, but not that well. It is for Android.

This is something that I still don't get. Most info says it doesn't matter what instanc you joined but I never liked the content in my home instance.

The advice is always that you can move instances. So I moved to this one where I followed a lot of the content. But there is no built in way to port over the content you follow. So I had to use a script I found on GirHub.

Then I got Mastadon to see what was going on there. I realised soon that that the content I was following on mastason was the same as Lemmey.

Now moving to PieFed (were I'll still see the same content) as it has better cross posting visibility.

At least this is what i understand.

So then what would I see different on Mbin, or how I supposed to use Masterson different to Lemmy.

*note that see the same content dosnt apply to whatever instances have been defederared (in either direction) from your home.