Tectonic together with Terralith seems to ignore larger biomes when looking at the online map.

[tawdry moth]

When I change the biome sizes by editing the values in the datapack's json files the biomes get larger with only Terralith enabled but when I add Tectonic suddenly all biomes get smaller. I tried with values as low as 0.01. Atleast according to https://map.jacobsjo.eu/
I have not tried it ingame yet.

How do I make them larger with Tectonic. Should I maybe use Terratonic and if so how can I can I change biome sizes in the that pack.

I am using Minecraft 1.21.

[charred rose]

Yes, Tectonic interferes with it. I don't have instructions for editing biome size with Tectonic, but should be similar to Terralith

Also, if you're using the datapack versions. You need to use Terratonic instead of Tectonic for them to work properly

[tawdry moth]

Thanks for the quick reply. That is a bummer, but it is what it is :/