I count six distinct features which Blisk advertises, of which Chrome has one.
Could you list them out for us, please?
All six are shown on the home page, which is the link we are discussing here. In case it's not blindingly obvious, here's the first feature which Chrome has support for: https://blisk.io/#section-multiple-devices Scroll down for the other five.
It does? How do you use it?
If you mean mobile device emulation, it's the second icon from the left on the dev tools toolbar, or Ctrl-Shift-M while the dev tools are open. It doesn't work very well in my experience, but it's there.
I suppose they are referring to Developer Tools + Toggle Device Mode. Less feature-complete than what Blisk is claiming, but seems to handle at least some of the device resolution-related things.