Pinch flats are the biggest issue if you’re running lowish pressure, so dual ply tires with cheap tesco tubes is pointless, the dual ply tires don’t stop pinch flats.
I’ve been running single ply (well RQ, dunno what ply they are) and DH tubes and not had a puncture for over 2 years.
Dual ply thick tires and DH tubes would be very heavy but meh, no punctures.
ymmv of course there are lots of different opinions.