Miss a Magic Vertical Mouse
Don't know the reason why the horizontal mouse became the standard, but it is true that the vertical mouse position is the natural one for our forearm. With the horizontal position our ligaments are tensed, then the accumulated hours can hit our health. This is more true if you work with computers, because are many hours daily.
After the 2nd case of tendinitis at work, I decided to investigate, and discovered that so obscured thing, the vertical mouse, they exist!. After some time using it, the forearm pain begone. I recommended it to other people with the same problem with the same result. No one who I comment about vertical mouse and try has in mind to return to the horizontal ones, even if it has not reach the point of pain, but feels it much more relaxed for the ligaments.
So, don't know why there is no vertical version of the Magic Mouse, for all those people that don't get used to the trackpads.
Mac mini, macOS 12.4