6 weeeks is pretty young for the whole drowsy but awake thing. Some babies do it, but some scream. Like you said.
That said, my DD (and DS for that matter) is one of those babies who you can put down drowsy but awake and she will chill and stare at the ceiling fan until she falls asleep. Sometimes fusses a little but pop the binky in and she's quiet.
I fully realize MOST babies are not like this and I'm lucky, but not everyone on your BMB is full of sh*t. lol
Just do what works for you and your baby. As they get older, some babies get better at soothing themselves to sleep.