CK3520HSE 50 hr service

I have 2 major questions.

1. The manual talks about the service differences between a mechanical engine and an electronic engine, but they don’t seem to mean like an EV. So which engine maintenance schedule do I follow?
2. Looking at the underside of the chassis, I see the oil filter, then also what looks like 2 hydrostat filters sticking out to the side. Does it really have 2 hydro filters?