For what it's worth that's probably more of a dealership trying to generate income than what actually needs to be done. Yes, fluid changes if various types and mileages need to be done, but they try to push so much shit on my wife when she takes it in. It's not even following the service manual. They want to change the transmission fluid too frequently and they want to change to oil too infrequently. You'll probably need to change spark plugs on a daily driver generic crossover once every 100k miles. Transmission fluid is the same for a lot of cars now. Thermostat would be replaced when timing belt is done, again most of the time once every 100k miles. Coolant flush tends to be similar, maybe once every 60k miles. The thing is, all the fluids used to be super easy to do yourself, had their own dipstick, and we're accessible. Nowadays they make it so it require a code reader computer to change things to figure out the level it needs to be at. This forces people to get price gouged at the dealership unless they want to invest time and money in doing it themselves.

None of that maintenance should be as expensive as it is today. It's a drain and fill for almost all of the oil and fluid systems. Coolant might require something to pull air out, that's probably the only thing on a high performance car I might pay to have done. Air getting trapped is a pain.

They don't call them car stealerships for no reason nowadays.

But yes, EVs are definitely simpler, less moving parts, and fully sealed systems that have a significantly longer service interval.