FM3has the equivalent of about 48 blocks I think.
It is not a direct competitor to a Helix and is not just about how many footswitches something has, it’s more than that as inside it houses the whole Fractal full fat engine, the Axe FX III
It sits slightly above a stomp, but below a Helix floor unit in both price and functions, but if you pair an FM3 with the FC-6 it comes in at a similar price to a Helix floor unit, is modular in that you can use it on its own, or with the floor unit, and with a very useable footprint, you can go for a larger floor controller if you wish.
All in all a very decent alternative with its own abilities, but it is different. They are a smaller operation and I think Helix with yamaha power got theirs out in the market first.
Fractal are a decent company as those that ordered the AX8 (which would have become defunct) were either offered a full refund or their purchase moved to the FM3