If you want your website to be openable on Apple devices, you would have to pay Apple a fee each month. If you want your website to be openable on Android devices, you would have to pay Google a fee ecah month, etc.
You mean the new recaptcha that requires remote attestation?
https://www.eff.org/deeplinks/2026/07/googles-new-remote-att...
Obviously, it doesn't have the fee part. But Google can decide soon for a substantial number of websites which devices can visit them and which not.
You would have the "new web" consisting of the top n major websites paying this fee.
And then you would have the "old web", accessible only to people still owning their own PCs with unrestricted browsers. And probably heavily scrapped by AI companies to reguritate to the masses through the new web.
You don't have to pay a fee directly, but you can't use open source web browsers.
edit: I not realizing that I been replying to wrong comment
So you won't be able to use your banking apps, your local transport app, public services apps, health services apps, etc.
But sure, you can do SMS (no RCS though), use the device calculator, and maybe browse the Web… until websites kick you out because your non Chrome/Safari browser isn't supported anymore. Even Signal won't work well due to the lack of FCM.
And I'm a GrapheneOS user happy with Obtainium and without Play Services installed in main user space.