I’m with you in regards to missing the office. I posted this before but I wonder how many of the newly WFH are merely in the honeymoon phase of remote work.
The thing with "flexibility" is that it may mean that you can come into the office but a lot of your co-workers won't be there. (Of course that is already the case with people who work on very geographically-distributed teams.)
I think it can be done right. My situation before I went fully remote a few years ago was a pretty flexible policy where you could wfh 2 days a week. I think you could extend this to 3 days a week or maybe even just have a mandatory 2 days at the office.
The effect is you spend most of your time at home but still get to go into the office. Think everyone is in office T W TH or T W F or something. I miss that setup and have since returned to that job and I hope I can go back in this year.
Yea I personally think a lot of the WFH hype is just people wanting to do it because times are stressful and its still new. I have a feeling after the pandemic is over and times seem more "normal", many people will want to return to work because it can provide a decent social setting throughout the day.