Imagine you join a company and walk into the office.
Now imagine how weird it would be if you walked into a room with 10 workstations for your team and you could magically summon all the things ever discussed in that room.
You could find all the toxic behaviour examples by your managers at your office by search queries. What would you do?
Chances are you might start looking at finding a new job right from day one. At least I would.
This is exactly why Slack channels can me a lot more important than office spaces.
The reverse is also true. Examples of welcoming attitudes, supportive behaviour, empathy by managers will play a huge part in a healthy work culture, again from day one.