I was hoping it would speak to the second part more - why is it worth it?

I get the arguments in the abstract sense, you want the tool to be background, maximum focus spent in flow. But in my experience I’m rarely chugging out multiple WPM constant typing. This is as a software engineer coding on Python predominantly. Plus the advent of CoPilots along with autocomplete IDEs I am not even typing as much as before. Granted, I am spending less time looking at the keyboard because I have the key sequences imprinted in my head now, and that feels nice.

The blocker in flow is rarely the time I spend pecking out keys. So what am I missing, how much is it truly worth it?