Google can know you've paid but they can't link it to your Signal account thanks to zero-knowledge proofs.
Except for tracing IP addresses, timing etc... as you've mentioned, but that's much more involved and cannot be done retroactively.
Google can know you've paid but they can't link it to your Signal account thanks to zero-knowledge proofs.
Except for tracing IP addresses, timing etc... as you've mentioned, but that's much more involved and cannot be done retroactively.