If you want to limit your CPU to 65W, try checking both of the Clamp boxes in the Power Limit Controls section of the TPL window. It looks like your cooling can handle more power. I would probably set both power limits to 75W.
ThrottleStop shows Not Available at the top of the FIVR window. That is a sign of Intel being Intel. They took away all of the important features from the H series. Only HX customers get access to the good stuff now. There is no known way to unlock FIVR voltage control in the 12th and 13th Gen H series processors.
If the BIOS locks the PROCHOT Offset setting, you cannot use ThrottleStop to make any changes. Try clearing Lock PROCHOT Offset and clear PROCHOT Offset. Press OK and then reboot. If you see a lock icon near this setting after rebooting, you cannot make any changes so leave this alone. If Dell has locked PROCHOT Offset to 10, you cannot use ThrottleStop to change this to 5. Your request will be ignored.
Looking forward to a log file. I always like them.
Edit - The log file shows your computer spending lots of time bouncing off the low ball 90°C thermal throttling temperature that Dell has probably set. Reboot and check to see if PROCHOT Offset is really locked. Check the BIOS to see if there is any way to control this setting. You need better cooling or you need to find a way to raise the throttling temperature to get any more performance out of your laptop. No point in raising the power limits unless the throttling temperature can be increased to the Intel recommended value.