I don’t know what you want me to say, my 2019 Model 3 has a manual door release handle on top of the panel inside the door of the back seat? Maybe it’s a EU regulation thing.
Also mine looks nothing like the manual posted. Just to point out, this wasn’t a recent addition, there were model 3s with back door manual releases back in 2019.
*until everyone stops using Windows. Except for business users, which probably don’t get these nags anyway