Ecotricity for example you get cheaper charging rates on their chargers if you’re a home customer so you’d have to do the maths to see what the best deal works out at overall for home & charging.
Ecotricity 50% discount for customers ended last month, now a flat rate of 30p kW
I’ve got a bp pulse 22kwh 5 minutes from the house, free to use and a bank of rapid chargers (50kwh) 100m away from chargeplace scotland, 25p per kW.