Or maybe they will launch Win 12 with optional TPM support.
Imho making the OS(es) TPM only cannot be good for their business, many people are still on Win 10 with no intention to switch, since their motheboard does not support TPM and do not want to upgrade PC / waste PCI-E slot on TPM extension.
Unfortunately it’s the only way to use Gamepass on Linux, so even if it’s not the browser of choice, some people do have it installed on their machines.