I think some folks might've gotten a bit muddled up between the two different AL releases of Your Name.
The original one had compression artifacts (although I didn't find that to be all that noticeable, to be honest), but the big problem was that the audio was borked throughout the entire film. Truly, the audio was awful; it sounded thin and hollowed out. There were also some subtitle issues.
The second version fixed the compression artifacts, subtitles and audio problem, but introduced a two-frame video glitch late on in the film.
EDIT: Ah, apologies. It was the bike scene from the first version with the heavy pixelation being referred to, wasn't it, rather than the later one with the video glitch in the reissue? My bad.