Black screen with white spots on a new Macbook Pro 16 (2021)

Hi. Just got my new Macbook Pro 16 (2021). Everything appered fine at first. I turned it on for the first time, set up a new iCloud account and the device itself. After that I proceeded to downloading the Office 365 package from AppStore and put the laptop aside. While the apps were still downloading, at some point the display went black and stopped reacting to any clicks.

I tried to reboot the device. On the Macbook starting I heard the intro sound, but the screen seemed to be black. I could barely see the fainted Apple logo (more like a blurred stain). I could definitely see Mac starting (status bar under the logo completing, though blurred too). It seemed like the laptop proceeds to regular login screen, though the background was still black and all the clickable icons and texts were blurred.

I tried to reboot the device couple more times but it the result was the same. I still can tell Macbook is on by tapping Caps-Lock and it lighting green. The laptop was never dropped or hit in some way and no visual damages can be seen on it. The blurred stains are barely noticalble when lights are on, but can be clearly see in dark (screenshot of what seems to be the login screen added). Hoping for your help!