How do I stop facetime from lowering the volume of other apps?

I just got a new macbook today (first time getting an apple product) and found that when I facetime with my friend the audio of other apps is automatically lowered. How do I disable this?

I found a few other threads on this website discussing this issue, all of which were locked even though no solution was provided:

Turn up background/other apps audio durin… - Apple Community

FaceTime lowers the volume of other apps - Apple Community

How to turn down FaceTime volume while wa… - Apple Community