Coming across this now, did you ever explore options?
Archery
Welcome!
Open community for all interested in archery, bows, crossbows, crafting bows and arrows, hunting or target shooting!
Share your favorite bows, arrows, targets or places.
Let's see that perfect form!
Sorry, I haven't had the time to do any actual testing.
My analysis is presently, that multiple synchronized streams are more important than overlaying drawings. I had an idea of stitching the video streams into a 3d scene, but then I talked to some acquaintances of mine, who explore XR for academic uses... They had no knowledge of software that would do it on the fly. So that idea is dead for now.
Kinovea is interesting, but it seems cumbersome to use for the uninitiated. Especially the synchronization part. So I'm still considering my options. Maybe I'll figure out a way to record all cameras in one video file, like multiplayer on a playstation, and then load that into kinovea.
Thanks! I may investigate some, too, we shall see.