C07-CG: Yes
Rationale
The selected TLS 1.3 layer permits encrypted record padding and empty application-data records for cover traffic. This meets the criterion for an optional mechanism; it does not establish an enabled policy or effective end-to-end correlation resistance. The initial TCPCL header remains visible.
Assessment method
Documentary review; no new runtime experiment
Source context
Primary specification and bounded profile inference
Outstanding qualification
Pin TLS padding controls, exercise them on every observed hop and measure residual correlation and cost. No enabled defaults or measured effectiveness are claimed.