How to mute a FaceTime call without the disruptive sound effect

Hi, I know others have asked this question before, but I'm following up to see if there has been a solution or if there might be one coming soon?

I record phone interviews through my MacBook Pro via the FaceTime app. This works really well, except when I mute my end of the call, FaceTime makes a little "ding" sound, which I find super distracting and disruptive. More importantly for my purposes, this sound effect ruins my recording.

Is there any way to turn off the mute sound effect? If not - as a longtime user of Apple products, I would love to see that as an option in a future macOS update.

(This seems like it would be an intuitive change, even for people who are not recording phone interviews. I don't know anything about user experience, but from my perspective: When you're pressing mute on a call, it's because there is lots of noise around you. The "ding" effect is yet another sound in an already noisy setting and it amplifies feelings of stress, whether it's a conscious fear that the person on the other end of the call can hear that they've been muted, or, a more generalized unease because of the extra noise on top of all the other noise.)

Thanks for looking into this.