Definition of idle time and maximum time in Native SSO

I’m reading this: Configure SSO for Native apps docs.
So, what is the definition of idle time and maximum time?

If we correlated this time with Authorization Server Policy Configuration, are my annotations below correct?!

Screenshot 2021-08-11 at 2.27.14 PM|690x363

Looking at the doc you linked I see this:

The device secret has the same idle time and maximum time as the refresh token according to the authorization server policy

If this is what you are referring to, then yes your notes are correct.