Acrobat DC 21.005.20048 (Win10):
Actions taken:
- Starting a PDF Form from scratch
- Adding text with text-tool
- Adding text-field
- Adding checkbox
Result:
Text and any other object cannot be selected at the same time, neither by box-select nor by SHIFT or CTRL.
Text does not appear in "Fields" list and can thus also not be selected there.
- Cannot align text with fields or other objects
(Different text selected does not even promt the alignment-options)
- Cannot move text with fields

Proposal:
- Make text selectable together with fields
- Create a "label" object, which acts like a field, but can only be edited by the creator / in "Prepare Form" mode.