Should I buy a thermal gel if I'm using amd's stock cooler?
What's your CPU temp when gaming?
99°C
It already comes pre-applied to the cooler, the AMD stuff is a bit less efficient but lasts way longer than third party paste.
not bad, until runtime broker starts using 200% of my goddamn CPU.
Thermal paste is necessary if you plan to take it off at any point. Otherwise, you will be fine with the paste that's already applied to the cooler.
60-70
I legitimately got to almost 100C playing default minecraft
I hit 92 in DOOM ETERNAL. i7 6700k @ 4.6 and my ram is ddr4 2666 @ 3100.
I'll stick with the stock paste then. My 3800x gets up to 75 degrees while emulating ps3 (haven't done proper stress testing) so I'm a bit worried if I scraped some of it off while mounting.
Ryzen throttles and boosts to stay at a general temp range. Taking basic temp data is in no way scientific, and doesn't tell you anything unless you have a significant issue. It's likely that your paste is fine, since it should be expected that a stock cooler bottlenecks a high end CPU.