This bug report is a parity issue with Java.
In the Java version of the Big dripleaf it is not a complete block, but in the bedrock version it is a complete block.
Steps to reproduce:
- Place big dripleaf.
- Take a look at the big dripleaf hitbox.
The hitbox is a complete block.
The hitbox will be the same as in the Java version (that is, worked out in detail).