Now it's those machines only, and opt-out.
Eventually more and more machines will come with the necessary chips.
And it will be more of an effort to opt out. Then only professional versions will be able to opt out, through more and more complicated pathways. Eventually it'll just be part of the OS.
Meanwhile they'll find ways to sell the side effects of the functionality to other organisations, for example to monitor employees etc, to begin with. Then to governments, why not.
- Forced Cortana (oops no let's shut that down) - Forced OS Updates (oops your computer doesn't have the requirements) - Ads in your start menu - "Yes" and "maybe later" interactions everywhere - Edge force defaulting itself on occasion - Literally needing configuration management to run powershell on a daily cadence because settings might not get respected - 5 Layers of failed UI frameworks duct taped together
Basically Windows is becoming such a bear to wrangle that you might as well use Linux and save yourself the pain and $100 per computer.