The nice thing about Slack/Zoom combo is that if you have a highly self-directed engineer and a self-starter then they can spend time working until they truly feel stuck and then connect and share code snippets and do screen shares and calls. Instead of everything having to be a “stop the world” Q/A session you get a nice async communication channel that allows for various levels of triage.
That being said I certainly find in-person collaboration to be very valuable, but not so valuable as to drive a car and sit in an office where I can’t wear sweatpants or get up whenever I want to make an espresso or run an errand if I’m stuck on a problem for a bit.