Can't say I'd want to drag a 4 stroke chainsaw around. They don't even have engines as light and powerful as most homeowner grade saws, let alone a pro series.
My four stroke saw cut plenty fast enough, and I didn't think it was unduly heavy for a homeowner saw.
I just couldn't keep one running. First one self destructed and started glittering the oil. Replaced under warranty, second one started having carb issues almost immediately, despite only ever getting non-ethanol premium with a double dose of Stabil. I had work to do and no patience for a near new saw that was misbehaving. Set it on a shelf, picked up my battery electric saw, got the job done, and haven't touched the 4 stroke saw since. For most homeowner uses, it simply offers no benefit over a battery electric saw.
It's my "truck" saw though, and if I need it in that capacity, I'm going to NEED it, and there won't be any outlets to recharge batteries nearby. With winter coming, I either need to fix it and get it ready to go back in the truck when needed, or replace it. Probably replace it, I just don't trust it at this point.