According to the temperature trend, the deviation is relatively large, you can consider replacing the thermistor.
You could measure whether the resistance of the nozzle thermistor is normal with a multimeter, is it about 100k ohms?
(Measurement method: rotate the multimeter gear to the 200KΩ gear, and the positive and negative poles of the multimeter are on the terminals of the thermistor line. Refer to the picture, the nozzle thermistor is the same as the hot bed thermistor.)
