Has it finally got an notification LED?
Or is it a sensor or something that is visible.

The article is inaccurate, this phone supports image output through USB.

bought it for 299EUR (349EUR base price and 50EUR coupon), I guess a fair deal?

Good step in adding subpixel matrix commentary. However, are you sure the display is RGGB (two greens per) and not RG/BG (one green, alternating red and blue)? RGGB is not common (if it does exist) but is what an incorrectly oriented subpixel photo can imply. The image shown here is ambiguous between the two, and it's in effect worse to misconfirm it as RGGB (a full matrix with redundancy) if it is in fact RG/BG (an incomplete matrix).

Make sure you align the device properly on the microscope. You need to align the device so that the horizontal and vertical directions are represented correctly in the figure. Then with that, take heed that diagonal dots => RG/BG, and horizontal/vertical dots => RGGB.

You're well on your way.

I think it's mediocre that the phone only gets 3 years of OS updates and 4 years of security updates, but is a Sony, so that's expected. The author suggests the larger Poco F6 and Samsung A55 as alternatives... considering these phones have a completely different form factor, making them a far cry from the truly compact Xperia 10 VI with great stamina. Btw, that SOC power is ok for like 80% of average users.

Wide display edges is a must since it's in your hand. If it was narrow, then parts of my palms would be obscuring and touching the capacitive panel making usability abysmal.