Oof, I know this sarcasm, but I do have concerns that FF will eventually ditch the split view for search and address bars. I hate the unified bar, but I suspect that I'm in the minority here.
Funny thing is I had been using the address bar as search bar (removing the search bar using customization) even since before it was really supported (it just happened to work, somewhat, unreliable).
But I still hope they wouldn't do so as there are clearly situations where a combined bar just doesn't work well at all (like searching a URL or domain name in your search engine).
And if I wouldn't be using mostly a laptop and 1080p24" monitor my setup might have been different.