We are using http://download.opensuse.org/repositories/home:/tiwai:/kernel:/5.7/standard/ for a long time now and it is pretty outdated at this point...i guess... but it is the kernel that has no problems. I gave this issue another go because i moved from Tumbleweed to 15.2 because Tumbleweed suddnely started to have IO timeouts inside of VirtualBox VMs. So this broke my workflow completley, i couldn't work anymore. So i am now with everyone else on 15.2 which still has these freezes with the latest Kernel.