minecraft edition java and bedrock have a very different mob spawn, java being less well optimized than bedrock but yet java spawns more mobs than bedrock whereas bedrock at better optimization would have the ability to spawn more mobs or the same number.
in java the mobs spawn in groups of six (cows pigs sheep) and the game seems less empty whereas in bedrock it's twice less, this applies to mobs spawning in caves (they are much less). This also applies to (drowned)zombies and fish, in Java more fish and drowned zombies are present in the sea and less drowned zombies are present in rivers
Thank you for your report!
However, this issue is Invalid.
You reported a parity issue. We are only tracking parity issues that meet the following criteria on this bug tracker:
The feature affected by the parity issue is present in both Bedrock Edition and Java Edition in the latest release or development version
The feature behaves differently in one edition than in the other
The parity issue was introduced in Buzzy Bees (Bedrock Edition 1.14 / Java Edition 1.15) or later and was not present before
Any parity issue that does not meet these criteria will not be tracked on the bug tracker and should instead be reported on the Feedback website.
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