Comment by varnaud

For deliveries, if they have tracking (which most of them has) I'm expecting an unknown number, so when I pick up 99% of the time it's the delivery person.

For the rest, unless its an appointment that requires me picking up the phone ASAP (which is maybe once or twice a year for me), they leave a message and I just call back.

In France, we have a gouv service to block non-solicited phone commercial calls. It works pretty well. Combined with the default google spam blocker, most of the phone calls I receive are phone calls I want.