What Happens if ‘Absorbing by Observation’ Disappears?

Q: When you first started work, how much valuable job knowledge did you gain that was formally trained vs informally observed? Hybrid, shift to remote, is going to be particularly challenging for new hires. Powerful case for a return to on-premise, though perhaps as a transition stage, specifically for new recruits? No one has suggested this yet, so lets do it here, and now.