But I heard everyone, and their mother is making GMO hemp?

There is no published, reproducible transformation system for getting transgenic events into Cannabis. Some have claimed to have successfully created transgenic Cannabis, but this has yet to be validated independently. More product manufacturers are seeking verification from the non-GMO Project, so the motivation to develop new, transgenic-based products is waning. This is particularly true given that the creation and deregulation of a transgenic event is, on average, a lengthy 13-year regulatory process with costs exceeding $100M. However, there is value in utilizing transgenic tools to validate gene function within the R&D setting.