The two stage gas ones are great for throwing the snow way over the lawn and even full width driveways. Ryobi has a new bigger multi battery self propelled electric but it’s around $2K iirc. Looks promisingMy neighbours have (i think) a smaller ryobi. It is so quiet it is great. Can't throw the snow from the center of the double driveway to the lawn but if you go slow it has enough power to throw the double deep snow from the edge. Gets their ~6 car driveway done easily. No idea how much battery is left at the end. Completely useless against the windrow and a non-starter. I do the windrow for them. Like with battery lawnmowers, it is far happier if you stay on top of things. It is happy to do 3" but if you wait for a foot to build up or if you wait for it to get crusty, it really struggles.
If you do an early morning start the electric ones are nice. I think Briggs & Stratton get their mufflers from Harley D.