5. THE DATA WE COLLECT ABOUT YOU
• Technical Data: Commonly known as online identifiers and includes internet protocol (IP) address, unique mobile device identification numbers (such as your Media Access Control (MAC) address, Identifier For Advertising (IDFA), and/or International Mobile Equipment Identity (IMEI), type of device, your login data, browser type and version, time zone setting and geolocation, browser plug-in types and versions, operating system and platform and other technology on the devices you use to access this website.
the data we collect about you Jagex Privacy Policy
They don't openly admit to specifically collecting the HWID data, but they do state they could and collect that among other resources of your information.
And assuming they do, however, unlikely, track if it's a virtual environment or not, there's ways to spoof it.
Here's one example:
https://github.com/WCharacter/RDTSC-KVM-Handler