Raspberry Pi OS has turned into spyware for M$:
https://github.com/RPi-Distro/raspberrypi-sys-mods/commit/655cad5aee6457b94fc2336b1ff3c1104ccb4351

And yes, they add M$'s repository key to APT's trusted database and add their repo to APT's repo list.
Without asking.
Or informing you via a NEWS file.

So now every time you do "apt[itude] update", M$ will know about it.

This isn't the first time that the #RaspberryPi Foundation changed your sources.list without asking: https://x0f.org/@FreePietje/103799438252038745

Fuck that.

#RPi