Map Differences: On Bedrock, there are two kinds of maps, the empty map, and the empty locator map. Java only has one, it acts just like the locator map (has player marker).

Why this is a problem: The trades don't feel right. The Cartographer Villager on Java sells an empty map. Bedrock ones sell a map with no Player marker, unlike Java. This might not be a bug, but it is very annoying when I have to add a compass.

How to reproduce: Get a Cartographer Villager on Java and Bedrock. Then buy an empty map and open it. Look for Player marker.