How to Resaw with Just a Hand Saw https://www.youtube.com/watch?v=dPgVYTwQ5Wc
Hot take:
a frame saw is ergonomically the Western equivalent of a Japanese #Ryoba.
Frame saw in this video cuts on the push stroke, but is used with two hands: one left, one right, shoulder wide or so, so you can really push at a strong angle.
Ryoba, used with two hands, pulled towards your center, also makes straight cuts ergonomic. Only on the pull stroke.