Yesterday I went to a store to test this jello effect for myself on the Mini 6, & honestly it's just as bad as Samsung Tab S5e which is the worst Samsung tablet for this jello effect.
I think the only way to eliminate this effect in the future is to up the refresh rate, even at 120hz on my Tab S7 Plus it's still there, but not to the point where it's a deal breaker.
144hz or even 200hz would totally solve this problem, but we probably a few years away from seeing these kind of refresh rates more so 200hz on a tablet because impact on the battery it would have, some gaming laptop's & monitor's are now hitting over 300hz to eliminate screen tearing when gaming.
I think the only way to eliminate this effect in the future is to up the refresh rate, even at 120hz on my Tab S7 Plus it's still there, but not to the point where it's a deal breaker.
144hz or even 200hz would totally solve this problem, but we probably a few years away from seeing these kind of refresh rates more so 200hz on a tablet because impact on the battery it would have, some gaming laptop's & monitor's are now hitting over 300hz to eliminate screen tearing when gaming.