I’m not saying this is what they or other shows do, but just saying it was filmed before a live audience does not necessarily mean that it’s the sound of that live audience that makes it to the broadcast product. Easy enough to add a laugh track to augment or even completely replace the sound of a live audience.
EDIT - in fact there’s even a name for it - Sweetening
Yep. I have on several occasions had dreams about my phone having been taken over by malware or similar, the homescreen being changed to be full of junk apps, and being unable to uninstall them or take back control of the phone. Not pleasant at all.