IMO collaborating via paper isn't about the actual medium of communication, it's time and freedom. When every reply takes at least a few days to arrive to you you've got enormous space for experimentation, even if only in your own head. Meanwhile in remote work world we're plugged into video conference meetings multiple times a day. There isn't a lot of mental space.
The meetings overloads are totally unrelated to the fact employees are working on site or remotely. It happens in both models.
Very easy to say, very difficult for a great many people to do.
In fact, remote work is usually more asynchronous than in-person when it's a core part of how a company works. Remote-first companies might have people working in 3 timezones with 8 hours between each of them (I've been in this situation), so meetings are a pain in the ass for everyone and everything that can possibly be done via email or other tools, is.