I also experienced the flickering issue on day 1 on a new M15 r6. However I found a fix from Nvidia that seems to be working: After updating to NVIDIA Game Ready Driver 461.09 or newer, some desktop apps may flicker or stutter when resizing the window on some PC configurations No more flickering when resizing Edge or Chrome windows now. I was glad to discover this was a software and not a hardware issue.
Just received the laptop. The screen flickers and goes black when I drag the Edge browser page. Tried to reinstall the system, reinstalled the GPU driver but is not working.
m15 R6, screen flicker