I think that the fact that there's more variety now in whether you can work remotely or in an office is awesome, and I hope that's not going away. (And don't think it will.) And no job should ever give you hell for staying home one or two days per week if your job is totally doable at home.
With that being said, there are a lot of people in the world that genuinely enjoy having in-person interactions with their colleagues every day and I'm one of them. I've been lucky enough to work in jobs with awesome colleagues and I don't want to be put up digital barriers between me and them. I also like the fact that I have some forcing function for getting more than 2,000 steps a day.
The main thing that I'm worried about is that companies are going to see dollar signs in remote work because they can cut office space expenses, only for employees to not be able to backtrack.