I would agree with jjrandorin that regen has a lot of characteristics like a manual transmission, at least based on the 4-5 I've owned. It's not even downshifting a manual, if you even just let off the accelerator/gas pedal still in 2nd or 3rd gear, the car already starts decelerating quickly, and even in high gear on a lighter car. Most likely if you've driven a stick all your life, you learned early on how to feather the pedals to provide a smoother ride, and carry that into the EV's as oppposed to the "pulsing" jjrandorin described (which I never thought of it that way before). And I'm sure you used both deceleration and coasting (by engaging the clutch) as different tools in your driving arsenal, with both left and right foot learning how to use the modes between full on and full off.
I understand the Bolt EV you already have has adjustable settings on regen and one-pedal driving, I'd be curious which setting you chose, and whether it more resembles manual or automatic transmission feeling...