There is now a 3D-printed PlayStation controller mod that aids one-handed usage for all those gamers with accessibility disadvantages or just those who'd like to be able to dig in a KFC bucket during gameplay. The mod can be 3D-printed either for lefties or for righties, and the shoulder buttons are all grouped on the opposite side for single-finger access.
https://www.notebookcheck.net/3D-printed-PlayStation-controller-mod-allows-one-handed-PS4-and-PS5-gaming.597669.0.html