Agreed its not black&white, but theres more factors than IC.
For example I think all new grads need to be house trained with some in-office period, as well as have made enough money/been subsidized to actually have a proper WFH setup. 22 year olds hunched over a 14" laptop screen on their nightstand ain't it.
For people who've done 10/15/20 years in office, we know how to manage our time remotely, and many of us have long had proper home office setups for weekends/after hours.
Further - many of us have long worked on globally distributed teams, so the concept of everyone getting around a whiteboard was literally never ever a thing.
COVID, remote, hybrid, etc have brought a whole new way of working and tools such that I can collaborate with my global teams in ways we never did 2019&before. It also means that even in-office, people are spending hours on zoom.. which seems counterproductive.
Anyway what we are really seeing is companies getting greedy. If you want to mandate in office days & hours, then maybe I don't need to check my email/slack first thing in morning, right before bed, and over the weekend. Maybe if I'm not allowed to work remotely, then I can't help with your urgent issues at 10pm or Sunday afternoon, etc.
I’m 40+ and I still just work on my laptop. I do have an office setup but I dunno I just kind of like sitting in bed with the laptop.
I always tell my friends and colleagues new to remote work that remote, async collaboration is a skill to be learned.
You have to take a thought and distill it down to a diagram or written word before you share it. Personally, If I can't do that it tells me that my idea is still half baked.
It also teaches you to avoid throwing out incomplete ideas or asking simple questions you could answer yourself as the rtt for a response in a distributed team is too high.