Summary:
You can't open the boat with chests without a shift, even when you can't get into the boat (when the place is occupied by a mob or a player). This does not match the bedrock version where you can open the boat's inventory without using shift when there is a mob/player in the boat.

Steps to reproduce:

1. Place the boat with chest.
2. Put the mob in the boat with chest.
3. Try opening the boat's inventory without shift.

Observed results:
The boat's inventory does not open without shift, even if the place in the boat is occupied.

Expected results:
The boat's inventory will open without using a shift when a mob/player is in the boat.

Video:
Bedrock
Minecraft Preview 2022-03-24 23-02-01.mp4
Java
Minecraft 22w12a - Singleplayer 2022-03-24 23-01-09.mp4