https://wccftech.com/m1-imac-magic-mouse-charging-port-location-unchanged/

As much as customers love Apple changing the design of the M1 iMac while also using its custom silicon, they will equally loathe that the company has stuck with the same approach when it comes to the accessories. No, we are not talking about the new Magic Keyboard that now supports Touch ID, we are referring to the Magic Mouse. If you thought that Apple finally changed that horrible charging port location, well, you would be dead wrong.

Speaking with The Verge, Apple clarified on the charging port location of the Magic Mouse, or the Magic Mouse 2, if we are taking actual model names. What that means is that when customers unbox their shiny next M1 iMac, they will notice that the mouse will need to be charged in the same fashion as they have done on their previous-generation iMacs. For the last five years, Apple has not changed the charging port’s location, and it looks like the company will stick with the same design, for whatever reason.