I actually use it all the time when driving a rental.
Id think that for a car you own you wouldnt need it after the first few times though.
I like the way EVs have the squiggly hose icon and that tells you everyting.it doesn't depict the charger station, but the plug point on the vehicle.
*Technically* it could be less ambiguous, but actually it is good enough.
If memorising this is hard, not a big problem, parking next to fuel pump twice is not that huge of a damage.