There's a difference of the Bundle texture between Java Edition and Bedrock Edition. In Bedrock Beta/Preview (1.21.30.23), the bundle is slightly lighter than Java Edition and vice versa.
Here's a comparision:
Left: Java Snapshots
Right: Bedrock Betas/Previews
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Comments 4

@Greymagic27
Yes, this is still the case in 1.21.40.22 Preview. Ever since the bundle was first added to Bedrock, the closed texture has always used a slightly different texture than Java. This is not the case for the "open" textures though, they are the same between both editions.
The open textures themselves match Bedrock's bundle texture, meaning that in Java the closed bundle and open bundle textures are different.
I personally prefer Java's darker bundle texture, as it is colored more closely to leather.