This article goes into more detail about how these new measures will actually work compared to the blog post earlier this year from Google. Namely:
- Enabling the OEM unlocking setting will no longer prevent FRP from activating.
- Bypassing the setup wizard will no longer deactivate FRP. FRP restrictions will apply until you verify ownership of the device by signing in.
- Adding a new Google account is blocked.
- Setting a lock screen PIN or password is blocked.
- Installing new apps is blocked.
Okay, according to the article, this functionality will only activate after you have signed into a Google account for the first time on the device. So, at least for those of us who use custom software such as lineage OS, that won’t matter since we don’t put a Google account on the device to begin with in a lot of cases. A lot of us boot the phone for the first time, skip the entire setup wizard as fast as possible without signing in or any of that stuff, and then immediately enable OEM unlocking and flash the lineage or whatever software.
I also imagine FRP will be ignored by custom ROMs even if the secret data is set.
Well, that won’t matter unless it’s a brand new phone or has been properly erased because you won’t be able to install lineage anyway unless one of those two conditions are met.