i’m lucky that i have the choice. fully versed in how different tyres work and whats what. I just choose to not take the risk of riding in the winter.
NO tyres grip on ice (one broken neck to show for that after hitting a frost hollow 15 years ago)
Bikes do not cope with salt, fact. granted they are better than they were, but one way to thoroughly wear a bike out quickly is to ride it on salty roads. If you want to keep it in nice condition, keep it off the road in winter (i appreciate thats not what the OP is asking btw)
Its personal choice more than anything for me, i am well aware you can ride all winter (and i used to) i just don’t see the point these days. And no, the triumph is not on track tyres etc, its road only and gets used to commute.