I don’t know if this falls under parity, ‘cause this falls under the grey area of parity.
Not too long ago, in bedrock 1.16.100, it was made that raiders can drop a damaged iron pickaxe (has a 50% chance of being enchanted).
The reward systems differs between those versions; In Java, villagers give rewards, while in Bedrock raiders drop rewards.

However, if I look at the parity guidelines, this should classify as a valid parity issue.

Steps to reproduce:

1. Start a raid
2. Kill raiders
3. Look at the drops from the mobs

Intended result:
Raiders should drop a iron pickaxe at one point

Observed result:
Raiders don’t drop a iron pickaxe

One way of fixing this would be to port the additional mob loot from the raiders existing in bedrock edition over to Java edition.