Raspberry PI OS add Microsoft in the source list

Since the last update of Raspberry Pi OS on January 11, there is an entry from Microsoft in the source list along with the associated key.
Many users wonder why Raspberry decided to take this step. Some rumor that money has flowed to make this happen. Not only in the version with xserver the link is present in the sources, also in the version without xserver there is the link. No one asks the user if he agrees, which led to resentment in some forums.