And I still try to figure out how to enable it. I just want to try it out so I can decide whether I like it or not, but so far it hasn't shown up for me...
On my samsung N20U when I use assistant for the past week it will sometimes pop up on screen asking if I'd like to try swapping to gemini. It only stays up a few seconds before going away.
It's not only the default: you can choose to use the old assistant on Gemini's config, but the next time you open Gemini it's as if you just installed it and it sets itself as the default again.