Blocky edges in viewport

[cvanbattum]

I recently reinstalled photoshop on my laptop, after reinstalling Windows (11) on it. I was going through some old photos to clean up, and noticed that in some files, contrasting edges at zoom levels other than 25, 50 or 100% look pretty bad:

It looks like some kind of channel splitting performance optimization? Is it possible to turn this off? I've not seen it in older versions of Photoshop. Or is there something in my files that cause this? It's an 8bit PSD file (originally JPG).

[cvanbattum]

Forgot to mention it, the images are at 40.3%, 95.09% and 100%. As you can see, there is nothing wrong with the edge itself, only with the zoomed images.

[Michael J. Hoffman]

I'm not seeing this type of artifact on my end, even trying a variety of in-between zoom levels.

Is your graphics card driver up to date? What graphics card do you have? What happens if you turn off "Use Graphics Processor" in Preferences > Performance?

If that helps, and you have an older graphics card, try turning it back on, then go under Preferences > Technology Previews, and try enabling "Older GPU Mode (pre 2016)."