I was having significant stuttering issues in Battlefield 6 as a result of CPU performance/stuttering. About once a second my screen would freeze for a microsecond. Terribly jarring, but really had to pin-down. Turns out, it was related to my CPU temperature being too high (100c). I put 5 of these plugs into each side (blocking half the dGPU airflow ports) and my CPU stuttering disappeared!
I haven’t needed to use them for a while, so I had forgotten about them and why I made them lol.