I advise to add attributes "uri" and "version" to element "metalink:generator", similarly to those of element "atom:generator" (RFC 4287 ).
The RSS Greasemonkey extension "Newspaper" utilizes these attributes at the bottom of the rendered document.
https://greasyfork.org/en/scripts/465932-newspaper-syndication-feed-reader
I advise to add attributes "uri" and "version" to element "metalink:generator", similarly to those of element "atom:generator" (RFC 4287 ).
The RSS Greasemonkey extension "Newspaper" utilizes these attributes at the bottom of the rendered document.
https://greasyfork.org/en/scripts/465932-newspaper-syndication-feed-reader
https://xmpp-it.net/feed/ (Chyrp)
https://nuitka.net/blog/atom.xml (ABlog)