This datapack allows you to shear item frames to make them invisible, make item displays, make facades, and prevents item rotation if not sneaking.

To make item frame invisible, sneak and right click item frame holding shears
To make an item display sneak and right click item frame holding glass pane/glass
To make facade, sneak and right click item frame with block holding painting

You can also place a glass block on item frame and it will not disappear

Remove item from item frame to make it visible/remove display/facade

To unload this datapack use this command: /function frame:unload
This will remove all item displays and facades