One of the things I'm doing to adapt, that I expect to continue, post vaccine, is I'm kitting out a home gym. I never really liked the extra 20+ mins of time commitment to "go to" the gym, nor the whole waiting around for that sweaty dude to move off the machine I want.
So I've bought a few things and found it's much easier to make my own routine and schedule in my garage. Not terribly easy to find gear as everything sold out at the start of the stay-at-home, but slowly building up enough for some decent strength training.
Similarly, I always preferred sitting outside for dining, and having done so weekly in south florida for an entire summer now, I will never say "ooh too hot and humid" again.
And I'm putting in a pool - I love the beach but this will be closer, never closed, never require parking, I'll never have some smoking shouting family plonk down next to me, and I'll never get a jellyfish sting.
I think individually we'll all find our ways to adapt, and in many cases we might prefer the substitute to whatever it was before.