I'm a manager at a large aerospace and defense company. We had a hybrid arrangement where most people (who didn't have to touch hardware) could work from home a couple days a week. Most people seemed to think it was pretty reasonable. There really are benefits to in person collaboration, so some on site days seemed to make sense.

We recently moved to fully RTO, and I find it frustrating. It's not a big deal personally - I live close and I'm older - but it pisses off a lot of the employees, who see no good reason for it. I don't see any notable productivity increase moving from three to five days on site, it just makes my management job harder.