Hey Conner,
I’ll respond to you here instead of the other thread where we had discussed this briefly. Currently, once a shop goes over 50,000 variants this variant creation limit will kick in - and then the limit is 1,000 new variants per day. This limit is subject to change at any time, but I have not heard of any plans to do so.
You’re right though in that this should be more clearly documented, so I’ll advocate for that internally here and try to get something posted for others in the future.