The same technology could easily be applied to simply blocking anyone who isn't verified (in the name of stopping spam, DDoS, bank security, you name it), meaning anyone not using an approved install of Windows/macOS/Android/iOS is shut out from the internet.
In the long term, in the name of "banking security", they're likely to add a mode that also lets you ensure your pages aren't tampered with by extensions, and there go all the ad blockers.
That one is in the category of things that is little more than a nuisance in practice since it’s so easy to circumvent, but that’s a hardware thing and therefore it’s easier to plug something in that is unauthorized. Things are getting so tightened up on the software side with secure boot, Apple’s read-only system partition and by-default App Store Only policy on the Mac, etc. that I suspect this type of thing will be a pain for normal people, though actual at-scale bad actors will probably figure it out.