I found a very good way to shut my father up when he gave advice on the way I dealt with my children.
Behaviour rather than feeding or safety, because any of that was way beneath him.
I said I was very flattered that he thought I was perfect (he didn't) but personally I thought there was room for improvement.
It is a bloody minefield, and I do so agree with PPs who have said read the books, listen to the current advice, and the old, and go with your instinct.
Because one thing is absolutely certain; not all babies are the same.
And the advice changes all the time.
When DD1 was born in 1986 the advice was put baby on their front or side, never on their back.
She always hated being on her front so was swaddled and pinned on her side.
Did the same with DD2
By the time DC3 was born in 1991 advice was whatever you do do not put baby on front!
Very hard to go against previous categorical advice so he got swaddled on his side too.
I now learn upthread that they mustn't be put on their side either!
Wouldn't be surprised if swaddling is considered unkind or something now, but it made sense to me that they would like some restriction for a few weeks after being restricted in the womb.
And it really made them jump to find they could flail around willy nilly, they looked frightened.
My tentative advice would be listen to your instinct and your baby.