Monitors immediately turns on after idle should turn them off while having steam client running

[ChingeR]

So as tt says.
I reinstalled my pc, and after that, my monitors won't go to sleep unless steam client is terminated. They will go to sleep just as intended when steam is not running, but running steam again makes the issue reoccur.

I've tried turning every application running in the background off, and then only having steam on, and the same issue occurs. I've tried disabling animations in friend list and making steams default window to library.
Doesn't matter if I'm logged in or not. Just running the client makes me unable to go idle
Any tips on what I can do?

Windows 10 home 64bit Version 21H2 - Build 19044.1645
7700k
gtx 1070 (latest geforce update)
z170
sata ssd, m2ssd, sata hdd
16gb 3200mhz cas16

What else would you need to know about my system? :)

Solution which worked for OP:

1. Open "Device Manager"
2. navigate to the groups "Human Interface Devices" "Keyboards" "Mice and other pointing devices" "Network Adapters"
3. Right click EACH AND ALL devices present and choose properties
4. If Power Management tab is present -> Untick "Allow this device to wake the computer"

[ChingeR]

Okay, so I've found the solution!
I went into device manager and went into properties of the devices under: "Human Interface Devices" "Keyboards" "Mice and other pointing devices" "Network Adapters" and whenever I see a tab called "Power Management" I went in and unticked "Allow this device to wake the computer". So I don't really know which of all devices keeps it awake, and I'm too lazy to find out and figured I wouldn't have any issues waking the PC

From previous troubleshooting I know it isn't any of the Network Adapters that alone is the issue, but might be in combination of some USB-device so I keep the boxes unticked for now.

My USB devices connected are:
Logitech Superlight G Pro X Wireless adapter
Varmilo VA88M
HyperX Cloud Flight Wireless adapter
Yeti Blue Microphone
Xbox Wireless Adapter (Xbox Series X controller)

I am once again too lazy to check which is connected to what USB port (2.0, 3.0, 3.2 etc)

This could help others with the same problem.

[ChingeR]

Does anyone know the correlation between certain Devices and Steam using them for waking the computer up when it goes idle?

I can imagine Steam Big Screen being involved somewhere