As I said, "Perhaps DRM content will move towards using it at some point but it's always been a circus to get high tier DRM solutions to validate on Windows anyways". They may flock to it but just like SGX + HDCP 2.2 + IME is needed for Netflix to ship 4k to your PC it just means they still won't ship 4k to your PC unless you have a ridiculous set of requirements.

As far as "getty images" websites don't have access to TPM and the DRM available for video (e.g. Widevine) is both more limited than the native stack (i.e. already can't be used for tier 1/2 DRM content) and for video only. Could the entire browser landscape change in the next few years to enable that? Sure, but it has nothing to do with TPM on Windows.