Also, my issue isn't just with "new hires", it's with new inexperienced hires. I started my career in a company that had a "boot camp"-like training environment for new grads, and I found it hugely, hugely beneficial for both learning new things and for developing strong relationships that have lasted 25 years later. I disagree that kind of experience can be replicated over Teams, though I fully acknowledge that kind of experience is rare to begin with.