Title prettymuch says all thankfully.
Looking to see support for William Wythers' Overhauled Overworld.
I don't know anything really about how mods WORK so much, so forgive me if this is some 'no brainer, can't be done'.

Link to the curseforge: https://www.curseforge.com/minecraft/mc-mods/william-wythers-overhauled-overworld

Pretty much compatible on the go. I guess you didn't read the description!

I'm sorry, I thought I did. It works if you have vanilla biomes only ticked, but the ones it adds you don't get them added so I thought it made sense to suggest it. 😓