I uninstalled teams from my private device. I use it inside a virtual machine now since I do use my private device for work anyway. Having everything related to work within a virtual machine offers a good solution to separate stuff. Can be finicky with audio and video streaming, but on Windows Hyper-V offers that with quite good performance and it comes with Windows anyway. No excuse though, I think the prompt is heavily misplaced and I hope Microsoft can keep Teams decently lightweight.

I think the strategy isn't just being creepy, they want to advertise their device management in Azure and part of the advertising is filling the list of devices with unsuspecting victims.