Allow muting a person only for me

Writing here do not bring anything, since it will never be implemented (we do not event get senseless replies "thank you for your replies we will take it into account").
It is probably kept open to give a place where to spit our frustration out.

For those interested, in our case we found a pretty cool workaround. It is one of the solutions listed below (even in a company using teams, we use that aside):
DISCLAIMER: I did not check the mute only option on all of these solutions
https://slack.com/get-started#/createnew
https://nextcloud.com/talk/
https://element.io/
https://zoom.us/fr/signup#/signup
https://discord.com/
https://jitsi.org/jitsi-meet/
https://jami.net/
https://bigbluebutton.org/
https://tox.chat/

I disable the notifications since it is useless only to be informed others are as frustrated than I am. It does only renew my anger.