I'm having the same Issue in Indesign 14.0.3. Form fields created in InDesign are working correctly (able to be filled out in the interactive PDF) but aren't passing the accessibility checker in Acrobat. Text fields are getting an "Tagged Form Fields" error and radio buttons and check boxes are getting a "Tagged Annotation" error.
I'm having the same Issue in Indesign 14.0.3. Form fields created in InDesign are working correctly (able to be filled out in the interactive PDF) but aren't passing the accessibility checker in Acrobat. Text fields are getting an "Tagged Form Fields" error and radio buttons and check boxes are getting a "Tagged Annotation" error.