I think you have the theoretical game plan right, but I’d say that #3 is no longer within the realm of possibility in the US. There’s just no public support for it amongst anyone but the tiny percentage of the most cautious among us.
On #2, I’d even say that yes, masks still make sense in crowded indoor non-optional settings - meaning places we all have to go like public transit, grocery stores, and hospitals. But I’m already past the point of ever wearing a mask outdoors, and I’d also argue that it shouldn’t be a requirement for vaccinated individuals in optional spaces like gyms, bars, restaurants.