Like was mentioned before, etorque changed in 2022. Prior to 2022 acts quite different in my experience than 2022 onward. I test drove a 2021 which convinced me the system worked very smoothly and without lag. When my 2022 came in a felt the difference. Sometimes I am good with it, sometimes I hate it. It shuts the engine off around 3 mph (old system shut off when completely stopped) and if you are coming to a complete stop it’s ok. If you are still moving , like in stop and go traffic or pulling into a parking spot, it will sometimes surge forward. It is unsettling to say the least. So far I haven’t hit anything but it sure does feel like it is only a matter of time. There also seems to be a significant lag when pulling away from a stop. Not always , but it happens. Ram made an update to the system mid 2022 that helped quite a bit but didn’t solve it completely. I suspect future programing could fix it.
I drive quite a bit of city use and drive like an old man. I have not seen significant mpg savings. I’m around 15 mpg. Highway rarely if ever breaks 20 mpg.