Summary:
Placement of blocks on a Decorated pot is not the same as in Java.
Here is a comparison of the main blocks:

Block	Bedrock	Java
Sea Pickles
Top Bell
Lower Bell
Scaffolding
Redstone
Redstone Repeater/ Comparator
Levers
Rails
Glow Lichen/ Sculck Vein
Amethyst Cluster
Buttons
Pointed Dripstone
Hanging Roots
Weeping Vines
Snow
Doors
Corals
Pressure Plates
Flower Pots
Torchs
Hanging Signs
Lanterns
Spore Blossom

Steps to reproduce:

1. Place the decorated pot.
2. Compare the placement of blocks from the table with Java.

Observed results:
Placing blocks on a decorated pot is not the same as in Java.

Expected results:
The placement of blocks on the decorated pot will be the same as in Java (you can't place blocks like doors, redstone, but you can place Sea Pickles).