Yes, mostly because alien human mod, which is for most race mods the base framework. There is a fix-list version but that version is only for android tiers. I tested it and you will have mid game an impact for every single race mod you added.

No biome is simply to hold things clean. They will often not mix up.

You can try to add them. Its some work and you should know what to do.

What i can tell you is, that you will not really miss them. there is so much different stuff in, also related to insects, cultures and mechanoids, you will have your fun.

For biomes, note that when you add biomes, they will mix stones from RimNauts. So will get strange stuff to mine. Read about it here:

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2198026141

So, you can add biomes but you will get that effect. Or you have to remove RimNauts. Its your choice. I decided to add no biomes mainly for that, to hold it clean.

Just to be sure, the No-Race policy is only because of FPS or HAR have some game-breaking bug with this list?

I'll test it now but's nice to have confirmation.

All I know is that I have a collection with basically all the mods in this, as well as some races and I was getting awful performance, using dubs tool I even could see that one modded race pawn on my map was slurping up the majority of the resources, I saw this multiple times with different race mods.

I shall head the warning.