An EV must be considered as being a normal car as well as a highly technical electronic device. The 'tin bits' of both an EV and an ICE will be subject to the normal servicing events and potential failures. No difference in wheel bearings and steering components etc. An EV will experience less cost over time on brakes as they take less wear due to regeneration handling a lot of retardation forces. No exhaust issues of course, or the myriad of other problems caused by billions of mini explosions and waste gas handling. As such, regular service costs are usually much less for an EV.
Repair costs can be much higher for an EV if the drive train is involved in a major issue but then again most EVs come with a long warranty period so that should not be a concern for a few years. As to regular home maintenance, there is no difference between ICE and EV. Both need tyres, wipers, and screen wash. Other than that there is very little that needs attention in an EV. No fluid or oil levels to check.
The experience of most EV owners is that unless you are unlucky there is no need to be concerned about maintenance issues or repair costs unless outside of the guarantee period, in which case that could be a concern, as sometimes a problem with the drive train could write the car off.
Some EVs specify things such as gearbox oil and battery coolant changes at, say, 3 years. Always best to ask to see a main dealer's cost schedule for servicing over the next few years so that no nasty surprise is encountered later. Other than that, and all being well, service and maintenance costs are normal with the possible exception of a slightly shorter tyre life.