I love my FW13 on Ryzen but one thing drives me crazy: as soon as I join a video conference in Teams the Fan Noise becomes unbearable loud - when the laptop is position on the table as it should be.
As soon as I put it upright against the wall, it is okay.
I think there is a third option: why does Teams cause such a high temperature and thus Fan noise, right?
I never had to lift the laptop up like you did - if this would be the case, that is very bad design. I am not running GPT-6 on my Framework, just Teams
Propping up the back does measurably improve the cooling capacity at the same fan speed, Though not enough to make a difference between unbearably loud and bearably loud unless it was right at the edge.
Back propped up by about 2cm on a hard surface gives me around 2-3 extra W of cooling at max fan but I do got something of a weird setup with liquid metal and raised power-limits.
If it was flat on a soft surface vs propped up the difference would be quite huge.
Disabling intel turbo boost on the amd framework may get a bit complicated XD