It doesnt happen often ofcourse. It is super rare, but there are many horror storries on google. I think the biggest reason for fire hazard is a kitchen stove, still most people dont have any protection even there (including me).

These cans cost like 2-3 kg of filament and hopefully they will never be used and end up like a “waste of money”. Im spending money on this hobby anyway and this upgrade might help me sleep better 😁

Sorry for anxiety my friend