TL;DR: in v57, explore is called “horizon feed”. There’s already a nearly identical profile UI, same avatar, username, now unified chat, and soon a “Worlds” tab in the library (visible next to augments).
For the future:
The biggest step Meta could take would be to deprecate Horizon Home, Quest’s mostly featureless home environment. […] Meta could have Horizon Worlds running when no other immersive app is instead of Horizon Home. You’d be in your Horizon Worlds home as soon as you leave passthrough.
TL;DR: in v57, explore is called “horizon feed”. There’s already a nearly identical profile UI, same avatar, username, now unified chat, and soon a “Worlds” tab in the library (visible next to augments).
For the future:
this sounds like actual hell, no thank you :)