Hi @EGL1, let me see if I can help out here!
Your post has been translated to English as this is an International forum, please post any replies in English and it will be easier for me and other users to assist you.
Google stopped providing the possibility to move apps to an SD card to secure the security and the privacy. This feature was removed from Android, but Sony Mobile continued to support it for users convenience for some time. However, we decided not to keep our solution to move apps to an SD card for users' security and privacy.
We recommend users to move photo, video and music data to an SD card to save storage space in the internal memory. You can move files manually using the pre-installed Files app or a file manager app of your choice available in Play Store.
I hope that answered your question!
