Going back to my benchmark notes, at 30C ambient, when copying 400GB of large tiff images between nvme: The Samsung 4TB PCIe4 peaked at about 66C during the end of the write, while the Crucial 4TB PCIe5 peaked at about 74-76C. This is with the stock motherboard heatsinks and the case fans at the low minimum. That same crucial drive under constant benchmarking with crystaldisk taps out at 82-84C. In gaming or most typical use they never get over 60C, the writes are where much more heat is generated. This is with a powerful gpu and air cooled cpu.
The only real worth those big heatsinks have is if they can get into the case fan crossbreeze, if they cant they don't offer much. Since most of my CPU heat is exhausted out the back 120mm fan, and the big GPU heat is largely exhausted out the rear bottom120mm, the SSDs are not affected much by their heat, especially when gaming as the case fans are at alot higher rpm.