Unfortunately the folks that get to make these decisions are so removed from the reality of their company's every day tasks that all they can think is "if I don't see butts in the seats I bought, then obviously no work is getting done".
Humans need extrinsic motivation. Outside of overheated labour markets, this is going to be a real problem. Expect intrusive monitoring to become widespread if wfh persists.
If a company can't evaluate an employee's performance while they are out of sight, that sounds like a management problem.
I think competent organizations will actually do the counter and embrace trusting their employees. IME, it is basically already impossible not to -- there's just way too much work and complexity for someone to accurately know exactly what all of their reports are doing.
That next week, a recruiter from BigTech sent me a message about applying for a software engineering position. I asked them would it be permanently remote. They said “no”. I was about to end the conversation. But then we kept talking and they suggested I talk to another department that was always designed to be remote. I got a job there.
There are way too many opportunities for software engineers to be begging a company to WFH.