It feels like that is very similar to ordering a messaging service to give up a user's IP address usage, and then asking Google/Apple for user IDs associated wi

It feels like that is very similar to ordering a messaging service to give up a user's IP address usage, and then asking Google/Apple for user IDs associated with that IP address at the appropriate times. The apparent differences being removing the shred of plausible deniability from shared IPs, and not having to correlate times. Still if you're leaving Google-account-sized breadcrumbs while trying to remain anonymous, I'd say you've already lost. The third (or really first) workaround is to use a personal computer with libre operating system rather than one designed by a surveillance company. Then you can skip this dynamic where entire OS subsystems have been designed around users being plainly identified.