I’ve had some time to try the previous template game mentioned on various other phones now. Here are the results:
Pixel C (Special Internal Version): I can’t give many details on the specifics of the device. The motion was smooth but the stutter was less of a hitch and more of a very short pause. These pauses were at static intervals. Overall it seemed, anecdotally, that it performed a little better than the S8. I will likely not have access this device again or for a long period of time.
Xiaomi Redmi Note 4: Unlocked, ATT, Android 7.0. Very consistent stutter but more frequent and at very consistent intervals.
Google Pixel 2: Unlocked, ATT, Android 8.1. Almost no stutter at all. Only present when moving quickly. very consistent intervals. This phone seemed to run the game the best in regards to the stutter issue.