Particles are set to face the player rather than camera, meaning when looking down particles can look strange or unnatural, this is also noticable when looking at particles from the side rather than ahead, this issue is not present in Java edition.
Note: particles also seem to appear unnaturally bright on Bedrock edition compared to Java edition.
Linked issues
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[media]
This duplicates MCPE-29181
This duplicates MCPE-29181