I’m not aware of a welding process that is safe for humans without at least a dust/fume extractor. That and a respirator with the appropriate filters for the application that fits under a welding hood is basically standard equipment even for hobby welding in my opinion. Also hex chrome is a particulate, not a gas, and tig welding uses solid rods (not flux core) and a much smaller heat affected zone so it’s already better in that area AFAICT, but I’m not an expert in this area.

As far as particulates when welding go you should watch how careless people are when they grind their tungsten electrodes containing all kinds of dangerous additives with their respirator around their neck because “I’m not welding so I don’t need it”.

So yes, this is good advice. We should all think more about the things we do, even when working on home improvement projects and mundane stuff, that could end up damaging our lungs.