How can I use FLUID / extbase for backend preview of custom content elements in the backend page module (TYPO3 >= 11) since the class "PageLayoutView" is deprecated (for example "PageLayoutViewDrawItem" hook)?
I know this new method, but it doesn't use FLUID and I have to write my own database queries (e. g. querybuilder): https://docs.typo3.org/m/typo3/reference-coreapi/11.5/en-us/ApiOverview/ContentElements/CustomBackendPreview.html
I don't understand if there is any way to get the same "magic" extbase stuff for the backend working like it does for the frontend (for one and the same content-element)?!