I don’t know Canada but I thought you and the US were fairly well aligned in how these things are approached. For products and devices, if it’s sold it’s supposed to be legal, and therefore the onus of damages is on the manufacturer (and/or retailer sometimes). Where you would get in trouble is if you alter devices that then cause the damage, or of course doing unlicensed work in the home where you’re not supposed to.
For these normal household edison-base bulbs, I can’t see any surge ever causing a meltdown or combustion. They all have one of those fat grey resistor-fuse things, but if that were to fail to stop the current then you’re going to blow out caps or rectifiers or something almost instantly, and last ditch I suppose the emitter(s) would fail and open the circuit at that point. Those that have metal bases of course wouldn’t burn…not sure if the plastics typically used for the bases/base shells or the diffuser would actually burn or just melt for a moment. There are a lot of shoddy topologies these days across whole families of appliances and devices…it’s a shame really…but most things are not just going to catch on fire with a surge or even a lightning strike. I’m more concerned with heat-creating devices like toasters/toaster ovens, rice cookers, space heaters, mug warmers, etc…so many of those are disasters waiting to happen and I think a lot of them should probably be made illegal for sale until they incorporate safe engineering and legit certification/testing. But bulbs….eh.