Summary:
When an experience orb is near the player, the orb doesn't start moving towards the player until a few seconds have passed. In older versions and Java Edition, the orb immediately starts moving towards the player.
Steps to Reproduce:
Throw an experience bottle near the player
Observed Results:
The experience orb doesn't start moving towards the player until a few seconds have passed.
Expected Results:
The experience orb immediately starts moving towards the player.
Videos:
1.20:
[media]
1.19:
[media]
This may be related to the fixes for MCPE-11181 and MCPE-167247. It is possible that orbs always behaved this way server-side, or that a delay was added with the merging to allow them to actually spread when spawned.