Nobody has done this with a full frame sensor, as far as I know. I'd be interested to see smartphone image processing with a sensor that size.
Canon's M-series was similar, they didn't go all in on "pro" features, instead focussed on a consumer market that was shrinking rapidly.
The problem wasn't the technology, the problem was the fear of cannibalizing their own DSLR sales.
I assume part of this is that the camera companies are Japanese and refuse to pay any engineers more than $20k a year.
For real pretension you have to get a Leica.
It looks like they still don't really plan to add it: https://www.dpreview.com/interviews/9195902169/interview-son...
but at least if they had better bracketing options we could do it ourselves.