These shortcuts are annoying as hell, everytime i use ctrl + (whatever follows up) i either call someone, call the group or it opens up something else in teams. Thankfully i haven't recalled someone out of the call logs, because that would be super embarrassing, because that's the place where all the clients call us. I really would like to have the option to disable this nonsense, because clearly nobody really wants that "feature" in Teams or like most of the people don't want to have it. The workaround with regedit is something, but it doesn't work when you are in a GPO or you have other restrictions that are by default through AD. Same goes for example like the option for brightness in Win11 on PC or the option for the classic layout like in Win7/Win10. However, these shortcuts are just in general annoying and the reply on Twitter "we think it's a great idea" (https://twitter.com/MicrosoftTeams/status/1323150646871207936?s=20&t=U7U903Ngbj3AS1UvYVkqpw) is just super disrespectful. Yeah you guys think it is...but clearly people don't and want a solution to this issue, because it is. If you think it is great, ask next time others (like most of the people who around the world and non microsoft employees) what they think about it or at least give the option to disable something you think is great! Just because someone likes something it doesn't mean others like it too. You better add the option to mute others just on your end or that you are able to change the volume for each and every single person in the group call or single call (as in Discord, since that is standard there), because shortcuts is not something we need that desperately or at all.
And since this post was made almost a year ago and the tweet over 2 years ago...still nothing has changed even though people are complaining and want to have a solution and not have to make it sort of work with a workaround. But this probably won't change anything at all anyway, because you guys at Microsoft don't really care what people want...sadly there aren't that many applications on the market that function better than Teams otherwise people would have switched long time ago and not use Teams.