I'm just a sample of one but I literally did this. My employer started forcing us back into the office as soon as it was legally permitted. We were only allowed to be at 30% capacity, so management ensured that this quota was always filled.

We were all complaining about unnecessary risk to personal and public health. We couldn't even take advantage of the office, we were doing everything through Google meet anyway because meeting rooms were restricted to 3 people. Eating areas and water coolers were also out of bounds.

After a couple of months I landed a fully remote job and made sure management knew that this was why I was leaving. A couple of days after the CTO announced that fully-remote work will be allowed indefinitely for developers, and I'm quite pleased I was able to win that for my ex-colleagues.

Moral of the story: voting with your feet, it's a great way to balance power between employers and employees. Overall I think it's good for society to have this attitude.