It would be awesome if there was a config to tweak the frequency of biomes and to have the option to turn some of them off

Due to the Forge config changes in 1.14 there's no easy and elegant way of configuring the biome spawn rates at the appropriate time. While I still want to do it it's not an easy fix.

Just a heads up. I've been in contact with Nooby about Traverse and he's found a way to add a config to tweak biome weight. I don't know if Voyage works the same way but I thought I d let you know

Traverse got an updated which added this option, so I'm reminding me to look into it.
https://github.com/MysticMods/Traverse