Abt my gym trainer

Near our College there is a gym , where a trainer who is student studying engineering work as part time trainer at nyt time.

He doesn't have nice body like all trainer but he is friendly and nice.

So wt I am asking is , iam beginner don't know wt to do in gym , I joined gym and he was my trainer.

He is general trainers for that shift time when I go.

Its been over a 2 months now but everything time he tells same exercises,one time with dumbbell another time with rod and another time with Machine.

For example

Ex1:

He said for chest he only need max 4 exercises, flat , incline,fly and one for lower. And that's it , he also said don't do any fancy exercise seen from gym insta.

He says he only do 3 exercise only 2 sets.

EX2: he says don't do squats and leg press on same day and split it into 2 days .says do only 4 min or 5 max for leg.

My friend says min 8 req for leg growth.

I train 6 time a week and everything is planed by him.

Is wt he telling is good, because he is not a professional trainer here.

Along with that he always steps up give form check everything time.