I use Android but went to look at the iOS instructions for recording. Seems to me that you need start recording manually and this would be before a crash and if iOS acts like Android, well, you may crash right away or in 10 minutes or maybe 3 hrs!! That seems not so practical to me. I don't understand why S8 can't buy a few devices and actually run the game to see what happens for themselves.
Buying a few devices shouldn't be prohibitive...you keep recommending players buy new ones all the time to keep pace with the S8 memory hog coding.