Just put a sram 1130 cassette on with a 36 largest sprocket and I can actually pull the large sprockets side to side there is so much flex in them.
Is this due to it being a lower end sram one? Or is it just a consequence of the large sprocket?
I'm pretty sure my shimano 32 has zero flex in it.

And does it matter? I guess there is going to be little force in that direction.