The "slots" within the bundle's tooltip are way larger than regular inventory slots, despite not needing the extra space. This breaks parity with Bedrock, and unnecessarily blocks other slots from view.
For reference, a bundle with two rows of items blocks a grid that's about 5x4 slots on Bedrock, and 6x5 on Java.
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Bedrock sizing is depending on different UI configurations per platform. Java sizing is as designed.
Can confirm:
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