All reports of desktop-entry-contains-encoding-key for the archive. The extended description of this tag is:
The Encoding key is now deprecated by the FreeDesktop standard and all strings are required to be encoded in UTF-8. This desktop entry explicitly specifies an Encoding of UTF-8, which is harmless but no longer necessary.
The desktop-file-validate tool in the desktop-file-utils package is useful for checking the syntax of desktop entries.
Refer to https://specifications.freedesktop.org/desktop-entry-spec/latest/apc.html for details.
This tag has not been emitted in any package tested by Lintian.