> They're missing out on so much institutional knowledge transfer.
What this sounds like to me is your organization isn't documenting things properly. I know, because I've run into this exact same problem on projects at my organization.
"Send me your coding standard."
"Uh, we don't have one."
"Okay, well what's your code review process for integrating changes?"
"It's not written down, I'll have to walk you through it."
"What's my tasking?"
"I'll need to sit down with you in person to discuss that."
The lack of communication skills in software people has never been more obvious than during the quarantines. It's a serious deficit that needs to be addressed. I mean, what happens when one of these people leave, either for greener pastures, something happens to them, or they just simply retire?