I do emails at night in bed, at least the easy ones that don't require a lot of brain power ("Received, thank you".) Never answer my phone. One day a week with no meetings at all whether virtual or in person.

thanks for the tips.  Never answering phone is interesting. I'll try that one day a week.

99% of phone calls are not urgent. I let them go to VM and call them back, rather than stopping my train of thought at the moment.