Summary:
In mangrove swamp biome, the villagers have the default plains texture. In the java version, they have a swamp texture.

Steps to reproduce:

1. Find the mangrove swamp biome.
2. Summon a villagers there.

Observed results:
Villagers summoned in the mangrove swamp biome have a plains villager texture (default).

Expected results:
The villagers will have a swamp texture.

Image:
Bedrock

Java