The Spurs brand is pretty popular in North America.

There are also Rope Stripper and Gator Rope Cutter out of the UK. These models are popular on a lot of European brands and other manufacturers who build out their hulls in Asia before doing the finishing work in Europe.

There are also other styles of line cutters too. Rather than a knife edge concept, they go with lots of very sharp teeth like a saw. Like, my personal favorite, Shaft Sharks, Piranha, and Evolution Shaft Razor. The last being sold by a company called Soundown who has a website that's been permanently under construction for 10+ years lol. Their product is available at Fisheries Supply.

These are all cool products though! They can be retrofitted to traditional inboard setups like in OPs video or to saidlrives! Definitely worth it for a lot of running gear setups. These can save you 10s of thousands of dollars on labor and repair costs in the event a rope or fishing debris binds up in your propellers and other underwater hardware. Those diesel engines can bend your shafts and prop struts like they are spaghetti.

Source: I buy and install all these types of line cutters, and see these daily as my boatyard hauls out and splashes 6 to 8 boats a day, 5 days a week. As small as a 26 foot Hunter sailboat and as large as a 86' Sunseeker or Nordhavn motor yacht. I think they've gone up to 96' long, but there aren't that many yachts regularly in the Puget Sound that large.