4K83 is not gout synced. It has two extra frames shown in theatres.
The optical print audio is the primary audio track.
hairy_hen has created a new 5.1 audio track for this release.
schorman has updated all the English LaserDisc audio to this release.
All audio provided with 4k83 is synced to 4k83.
Any other gout audio you may have may be slightly out of sync after 0:47:41, if used with 4k83. It should not be noticeable though.
Foreign language tracks don’t lip sync anyway so you’d never notice it being slightly out.
In updating the audio tracks for 4k83 our audio experts actually discovered that the gout synced audio tracks are not actually properly gout synced themselves. All tracks are off sync by 2 to 3 frames for over half of the movie.