We mulch mostly using the chop and drop method with the abundance of weeds on our land. Fabric mulch is an interesting concept, because with the holes pre-made you can actually mulch before planting which is pretty cool. Only similar thing I've seen is sheet mulching with cardboard. Definitely gonna try some fabric mulch as I'm sure there's a lot of unwanted bed-sheets and curtains I can get my hands on if I look.
Congrats on getting an entire bed prepped with this method. It does look like hard work!