low cost fuses made out of a witches brew of poorly conductive metals.
This is just something someone would say that has absolutely no idea.
You need to be schooled in Ohm’s law/s, Kirchoff’s laws etc etc
They have to have a certain level of resistance, (as you say "poor conductively"), to blow at a certain amperage drawn through them. If they didn’t they would never blow!!!
I’m of the opinion that a fuse made up of metals that are on par with what you’d use in a cable are the way to go🤦♂️🤦♂️🤦♂️ OMG!! fuse has to have resistance to blow.
I’ve personally tried about 4 different brands and they all had a distinct soundJust more fuser snake oil voodoo talk from someone who’s out there in fairy land.