• Fujitsu motherboard
• Intel pentium G5600
• 6 HDD (4 x 4 TB 2 x 8 TB) spinned down
• 2 SSD for proxmox
• 6 CT and no VM for now

it runs at 16W mostly idle

TDP is not related to power consumption, it’s related to dissipation.

I tried proxmox with a Ryzen 1400, a GTX1060 Ti, 3 HDD, 1 NVMe. On proxmox I had a couple of VM and 1 CT. I had 70W on idle which is too much for me :)