My T1 package has been sitting on the shelf for months, will wait until the 7000 X3D models are available. I do hope the AM5 ITX mainboards will come down in price, the cheapest there is still costs 250€.
Although the 5800X3D technically has the same TDP, it seems that it pulls a lot less power for typical use, and is doing nicely with the Alpenföhn Black Ridge
Radeon RX 6700 XT stays happy enough at 48-50°C idle and of course warmer during games.
How hot was the 4090 getting?
In that config under GPU benchmarking for ~10 mins, the 4090 runs at about 70°C for the GPU and 80°C for the VRAM
Those extra small itx builds are interesting when you need power and some degree of portability for some reason, but a laptop doesn’t cut it (eg too noisy).