It seems a bit paradox (not expectable and against the usability philosophy), but the mobile version of the diff-view has some more useful user information (user-rights, edit-count) as the normal version, so in fact, the desktop version is "downgraded", eg:
https://de.m.wikipedia.org/w/index.php?title=Wikipedia:Technik/Werkstatt&diff=173873854&diffonly=1
Version: unspecified
Severity: low
See Also: