Sequel 3 was made by the folks behind Cubase, and it is meant to be lighter and easier to learn. This program's focus on loops and computer generated drum patterns makes the process easier for people with no music knowledge.
While Sequel 3 supports VST3, it oddly (imo) doesn't have a 64-bit installer, meaning you can't load any 64-bit VST3s either. Not sure how it was even possible for that to have ever happened.