Across all instances

Yes its so you can use any mastodon account

Mammoth has a For You tab and I found it quite useful

Looks like someone created a pull request (a code submit) for iOS client last month then conversation stopped

Is there a real life issue that people faced or this is all theories? I haven’t seen any sites blocking me yet with ads blocker used?

Very nice write-up. Was it fast for you to use? Notion has gotten quite slow for me on mobile

I still do not understand how their sync work, based on their description:

synced in your local p2p network

Can someone please explain this to me?

Their FAQ is pretty good , but it still does not answer that question