We took note of the drive’s temperature during some of our benchmarking runs.
Netac supply an optional heat spreader label with the NV7000-t which you don't need to use if you are using the M.2 heatsink provided by the motherboard you are installing the drive into. If you are planning to use it without motherboard cooling then you should use the spreader label. We relied on the hefty built-in heatsink on our Gigabyte AORUS X670E Xtreme test rig motherboard.
The hottest the drive got was when it was being pushed very hard during the Sequential write test using CrystalDiskMark8, when it peaked at 48° C which is 22° C under the stated maximum operating temperature. For the non-4 K tests the drive averaged 46°C while for the 4K-based tests, the average was 45.5°C.