Chevy Impala’s did but Impala’s are now companion to the DoDo bird.
Some full size pick-ups and large SUVs have split bench seats.
I wonder whether a good auto upholstery shop could modify the front edge of your seat. Besides lowering it, the problem might be remedied by shortening it. Or, they might be the ones who could help with blocks under the back frame.
I think this is probably the way I’m going to go. Thanks for the suggestion.