Phew, already switched to "Following" RSS instead of multiple RSSes for each manga I read so I didn't even notice the change. :D
But @Xunder and @Kuba01092 made a good point. We need something like "reading language".
Now the title is "MangaDex RSS" and url https://mangadex.org/rss/
For individual manga feeds it would be cool to have title set to manga title and url to that manga page.
Some display languages (Dutch, French, Japanese, Polish, Portuguese (both), Russian, Spanish (both), Swedish, Ukrainian and Vietnamese) break the design on lower resolutions (e.g. 1366x768).