I'm actually having the same issue. I will freeze randomly with no set time frame. I have an i9-10900k, 32gb for DDR4 Ram at 3200mhz and a 3090. Everything is up to date. I have tried every fix that I can't find. The usage for my GPU and CPU when it freezes drops. Mine happens if I'm playing with him or not. He is still able to do attacks etc while I'm frozen. If you find a fix let me know.