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Thermostat is definitely opening, otherwise car would overheat very quickly.
Your coolant temp sensor seems fine. Temperature will go over 190 depending on conditions, but eventually should come down.
Your temperature is definitely on the hot side, as those are the temps one would see on a track day of a 20 minute high RPM session, but they would come down 30 seconds after a cool down lap.
Have you had a chance to look at the oil cooler and see it's condition?
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