Agreed with no.2 While no.1 is a thing that people will naturally do, it kinda defeats the point of this fediverse thing. But no.2 combines the best aspect of the spreadout fediverse while seeing everything in one area.
/m/technology only showing kbin stuff is kinda limiting though. I hope they change it so it becomes like the All page but for "technology" and so forth. I mean they already do show the "similar instances" in the side bar, just shove those posts into the page and it should be good. And if people don't like it, they can just filter out instances they don't like.