That's what I use for mine. I even messed around with using Snap's PC application to generate a virtual green screen, then using Snap's virtual cam as the inpu

That's what I use for mine. I even messed around with using Snap's PC application to generate a virtual green screen, then using Snap's virtual cam as the input into OBS. Then in OBS I do any cropping and color correction before adding a chromakey for backgrounds and overlays and sending the OBS virtual cam to WebEx, etc. Way more elaborate than just buying a green sheet but I didn't have to go anywhere or buy anything ;)