...I don't know. I realize this is an entirely subjective view of what a web page should be, but I just don't think any website should know the intricacies of my hardware. The web is a low-friction, low-trust environment; installing a desktop app has more friction, but it also acts as a signal of greater trust.

If a website ever really needs to know my hardware, it can ask me to choose from a drop-down. A lot of users won't know what hardware they have—but, those users are also unlikely to understand the implications of a hardware-detection permission prompt.