Bee wandering is biased towards the northwest of their hive.

To reproduce this, I placed a hive down in an area with no flowers or existing beehives and ran the following command while standing on top of it to summon a large number of bees at once: (With the X,Y,and Z values modified depending on the position of the hive, of course)

execute as @e run summon minecraft:bee ~ ~ ~ {CannotEnterHiveTicks:10000000,HivePos:{X:-92,Y:96,Z:-60}}

Then, I waited for the bees' random wandering to sort themselves out. In both 1.15 and the snapshots, there's a clear bias that leads them to cluster towards the northwest.

I tried teleporting the bees to the southeast in case the bias was towards clustering together and northwest positioning was accidental, but over the course of about four or five minutes they all filtered back towards the northwest of their hive.