Hello, Ministry Of Concrete,
Thank you for your patience.
1/ https://prnt.sc/7Ndq6gYGMtvI – the same header was assigned for different languages.
In accordance with the texts written in Multiple headers, any translations are overridden.
As a solution, a new header was created exclusively for the Greek version of https://prnt.sc/QdvSGkS2b1d4 and the texts were written in Greek. Consequently, everything is working as expected https://prnt.sc/TqJlWGnLKnpT . Additionally, your code (hiding texts) was removed for the English version https://prnt.sc/OdIuKhR-_IGq
2/ If you want to translate texts of Mobile panel – https://prnt.sc/DNkBt8NFKHHr it can be done via changes in files of child theme only.
Please let us know the desired texts for translation, so we do this for you.
Kind Regards,
8theme team