I think a mild hybrid doesnt really do much other than top up the 12v system. a full hybrid will gain you miles, and a phev can let you basically drive in electic only for a stated mileage which can be more than enough for most folks daily usage a lot of time.
an EV will of course save most if your doing more miles, and are usually cheaper than phevs.
PS, the avatar doesnt work on this site for some reason
Current Car: Hyundai Kona Premium EV...2 way 40kg hoist
Last Car: Toyota C-HR Excel Hybrid...4 way 80kg hoist