"QUIC includes a connection identifier which uniquely identifies the connection to the server regardless of source. This allows the connection to be re-established simply by sending a packet, which always contains this ID, as the original connection ID will still be valid even if the user's IP address changes."
@andreipetcu How is QUIC non standard? https://tools.ietf.org/html/draft-ietf-quic-transport-34
QUIC is essentially HTTP/3's underlying UDP-based transport protocol.
As for not being a tracker since it's per domain only and not cross site, my concern was not cross site tracking, but rather a site knowing who you are even if you say switch to a VPN or a tunnel.
Granted, you should not be keeping your old browser connections alive when you do that, but it is an extra thing to be mindful of that was previously not there.
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