The actual (or at least variant) German pronunciation is MUH-yuh /'ma:ja:/. There’s a popular cartoon series “Biene Maja” based on the children books by Waldemar Bonsels, translated into English as “Maya the Bee”. The German theme song interpreted by Karel Gott is also very well known and uses the aforementioned pronunciation (with a Czech accent).
-https://hu.m.wikipedia.org/wiki/Maja_(keresztn%C3%A9v)
-https://hu.m.wiktionary.org/wiki/Maja
-https://en.m.wiktionary.org/wiki/Maja#Hungarian
-https://www.behindthename.com/name/maja-1/top/hungary
Also Icelandic: https://www.nordicnames.de/wiki/Maja
It is used as either a form of Maia or a diminutive of Mária/María in both languages.