[lexer]

IMO that is normal
Tctl/Tdie is the hottest point (peak temp) of the whole CPU not only the cores and the motherboard uses that sensor to predict temperature spikes and ramp up the fan in time.
In the past that sensor has a offset of 10°c but now are in 1:1 relation.

 

[lexer]

Tctl/Tdie like a said is the peak temperature of all the sensor integrated in the CPU and modern CPUs has a LOT of sensors. Meanwhile CPU CCDx and CPU die the average temp registred in X period of time. We don't know how those values are calculated because documentation is very scarce. Only some random articles from AMD and comments from AMD Reps on reddit .
I think the main funtion of that sensor is to control fan speed efficiently. In our gaming pc we have massive cooling capacity so changes in temperatures are usually "very slow" . But in laptops with those tiny coolers need some "prediction" to ramp up the speed before the CPU/SoC gets too hot.
Old Ryzen CPU (1000 - 2000 Series) has a 10°C offset and Threadripper 1000 series 27°C offset for that reason

A solution to make the fans don't go like a 16yr with a Honda Civic is chaging the temperature hysteresis in relation to the fan speed. You can change the value on the BIOS to like 10°C