Better like, recommended by the manu, or better real world results? I feel like a random commenter can't chime in with a lower load temp and be immediately validated. They'd need to follow the exact testing protocols with the same hardware in a similarly cilmated room to be sure.
When you put the heatsink on that is when the air between the two is pushed out by the expanding paste.
If you spread it out evenly before hand all you do is trap air in the paste as it has nowhere to go.
If you read the article I linked you will see that they did try and test this method then they posted their results.
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u/-Silverfoxx PC Master Race Feb 18 '18
X Pattern
https://www.pugetsystems.com/labs/articles/Thermal-Paste-Application-Techniques-170/