Screen turned black not responsive - but still functioning?

I am writing to report a problem with my new watch (firmware 8.27), no apps installed, but the problem has occurred every day almost since I received it (for the past 4-5 days), between 9-4pm (which is a strange pattern).

The issue is that the screen/watch won't wake up/light, and it's unresponsive to any gesture, touch or button presses.

I note that these phases occur when the watch is over 70% charged.

I am not doing anything with the watch when the problem occurs. I simply try to look at it/the time. The screen no longer turns on, gestures, touch, or buttons do not work.

If I hold down the top right button for 15 seconds, it probably activates the assistance mode (because it vibrates quickly three times). So, the watch is on. LED's also green.

Holding for more than 20 seconds to perform a hard reboot is the only FIX. This is unfortunately erasing all the data collected for the day. (BB, Stress, HR).

I observe that more and more posts are starting to appear on forums about this problem.

Could you investigate it and find out if it is a software problem or a problem with a defective batch?

Thank you for your attention.

PS : Such a great watch; new model. so many issues. this is so sad as I had no other issues in 3-4 year with 3 other garmin watches..

PPS : BONUS > Sometimes - I also get random restart when navigating graphs such as body battery. so all of these seam software issues on top of software issues.

* later edit : I have to mention that I have not encounter any other issues with this watch, works perfectly for everything else. the issues seams display/software related from my POV

* I've attached a picture as a point of reference, for when the "blackouts" happen. The gaps coincide with an approximation time when the watch becomes unresponsive and needs a restart, losing some data. I have to repeat that I just use this watch > only as a watch, and these issues appear while sitting at a desk. working on the laptop.