AR & VR files in a Homepage

Good day all,
we build our company homepage new.

For some projects we use the VR and AR, the files AR USDZ , in the mobile version it is no problem, the iPhone or I pad open it direct, but I am not sure, what on a good way for the PC / MAC version.

And how I can do it with th 3dpd, with some viewer ? now we have the downloads.

Did anybody can advice me?

Thanks a lot.