As seen in Skydemon, and mentioned by the support team, Skydemon now adds the word "Radio" standard behind (uncontrolled) aerodrome callsigns without "Tower", "Info", "Traffic" etc. This leads to some incorrect data across several countries. Especially Switzerland should be mentioned here, where only the name of the aerodrome should be used as callsign without the use of "Radio" behind it. As an example: "Wangen-Lachen Radio" should be just "Wangen-Lachen". Only on airfields with AFIS "Information" should be added to the callsign, e.g. "Samedan Information", but this is still correct in Skydemon. Another example is Lithuania, where "Info" is often used instead of "Radio" or just "Traffic". France seems to be still correct, without "Radio".

Would be great to have this corrected in the upcoming charts.

Germany is indeed a bit complicated. These "NfL" messages are only accessible if you have a paid subscription for it. I assume that the DFS will update their AIP somewhere in the future, but for now, they want to earn money from the NfLs. Otherwise, these typical German  NfLs wouldn't make any sense, since normal countries publish this kind of information directly into their AIPs.

Fortunately, the aeroclub Straubing published this NfL inofficially on their website. It can be downloaded here. The change from INFO to INFORMATION counts only for AFIS-airfields, most of them have an RMZ in Germany, other uncontrolled aerodromes have still the callsign "INFO".