M1 MacBook Pro screen circle pixilation flashing issue

Howdy MacbookProM1Apple,

It’s great to have you in the Apple Support Community! We gather that you've been having issues with the display of your Mac. It's going to be our pleasure to help out.

An excellent place to start is to check for any macOS updates: Update macOS on Mac.

We also recommend booting into safe mode, logging in, and testing to see if the issue persists. You can find the steps for safe mode located here:  How to use safe mode on your Mac 

If you’re still noticing issues after safe mode, check to see if this is something that's isolated to just your user on your Mac, or if it's system-wide. Please use the steps from the section “Add a user” to create a new user on your Mac: Set up users, guests, and groups on Mac

Although the issues mentioned here don't exactly match your description, giving the steps here a try could be helpful: If your Mac display doesn’t look right

In addition to that, you might want to try a NVRAM reset. It's a useful troubleshooting step for display related issues: Reset NVRAM or PRAM on your Mac

If the issue persists, please reach out here for additional support: Get Support

Have a fantastic rest of your day!

You can make an appointment for a free over-the-counter Hardware evaluation from folks who put their hands on these Macs, all day every day, by making a Hardware appointment at the Genius Bar at your nearest Apple-owned Store.