Data Caps for Internet

I know that many internet services can be much slower and more unreliable in Bali than other countries. A big thing I have been trying to figure out is what, if any, data caps there are for home internet usage?

I understand that different plans will come with different download/ upload speeds, but wanted to know if they cap the amount of data you can use in a given month?

It used to be that caps were a factor in pricing, but I haven't seen that much these days.  Most plans are priced with unlimited download/upload.

Thanks for that :)