yes the distance you have to swipe is also shorter as detailed in the original post, and thats an important aspect aswell.
"Do Firefox/Chrome/Arc all have same swipe animation? It was not clear which one style was preferred?"
As shown above all other browsers then Safari/Orion i have tested seem to have no page animation, just an arrow that shows up as an indicator. and that arrow appears to be mostly the same on all of them.
Its not important to me how the arrow looks, what im interested in is shorter swipe distance and not having the page animation.
But here are some suggestions to what could be used:
chevron.left.square.fill
chevron.left.circle.fill
My suggestion would be having it go from 0 to around 80% opacity depending on how far you swipe (like the other browsers), you could include having it come in from the left and stop at the position its at in the screenshot above, but i dont think its nescessary and maybe also less elegant IMO
Im also completly fine with how it looks on any of the other browsers.