If you only have 2 wires coming from the light (white,black) I don’t think you can use GE type smart switches to do a 3 way setup. Unless there is someplace to grab the neutral from that I can’t see?
I think you’ll have to install a micro switch in the light box and then wire the 2 switches to the micro.
I’ll let more knowledgeable people point you in the right directions.
See these drawings in this topic post 12.
If you go the micro route I have done that with the Aeons micro. They have wiring diagrams on their site that I used to change my old 3 way into a smart (with micro switch) 4 way.