It’s easy as searching for your microwave model + the keyword “manual”, there’s typically a section on exactly this. If nothing comes up just try a generic search like “How to silence microwave” and find what works.
FYI some microwaves do not have a silence function
Most modern microwaves have a silent mode. Try holding down the 2 button until it beeps.
Feels ironic.
It’s easy as searching for your microwave model + the keyword “manual”, there’s typically a section on exactly this. If nothing comes up just try a generic search like “How to silence microwave” and find what works.
FYI some microwaves do not have a silence function