Metamucil says their product has both types of fiber.
“ Psyllium husk is unique because it is rich in viscous soluble fiber (70-80%) and insoluble fiber. In fact, psyllium husk is one of the highest naturally occurring sources of viscous soluble fiber.”
https://www.metamucil.com/en-us/faqs/hcp-faqs#
“Psyllium husk (Metamucil and Konsyl) is rich in both soluble and insoluble fiber. Generally, fiber supplements with mainly insoluble fiber may be a better option for constipation.”