Thx for the tips but it did not help, all I got was problems.
Installed lastest WHQL radeon-software-adrenalin-2020-21.10.2-win10-win11-64bit-oct25 and iGPU is not visible, no Radeon Software in desktop menu, no Radeon GPU in Task Manager, I am using external monitor that now has to be on "PC screen only", the correct "Second screen only" switches to internal monitor, the opposite way. GPU Z and Afterburner show "GPU 2 Microsoft Basic Display Adapter". RTX 3070 lost Vulkan and OpenCL technologies. Maybe I deal with it tomorrow, dont game much anyhow but I want to solve the GPU memory freq fluctuation issue. Afterburner / RivaTuner cant show RTX 3070 data like temperature etc.