Is it necessary to clean the engine for the first maintenance of the car?

Like cleaning supplies are extra items, which are not included in the first insurance. If the new car leaves the factory without cleaning the engine, just change the oil filter. When you change the oil with better quality, there is basically no need to clean the engine. I use GT engine oil, which is a four-grade PAO base oil with good cleaning ability. I haven't cleaned the engine after driving 50 thousand or 60 thousand kilometers.