> stating that a 10 minutes quick chat is going to be the center of that day for you definitely signals social anxiety.

It really doesn't. You may not be aware of it but you quite literally have to structure your work day around your meetings because the meetings are fixed time blocks where you have to go and do something else. If you were in the zone, having a productive day, you are absolutely going to have a big slump (maybe) leading up to the meeting and after the meeting.

> Yes, "this meeting could have been an email", async communication and all that jazz.

That would be ideal for most cases! But even informal calls (messaging "can we hop on a call?) could be better because they are less overhead to book, not a commitment, have some preparation/context already in messages, etc.