Long post with good news at the end:
It is pretty visible to my eyes, and is one of the first things I noticed after installing. It has been annoying me more each day. That and the strange colors even in sRGB on the Super5. I have two Switch Lites, one I put the standalone Super5 screen on and one that's a little beat up that I plan to put the Mega Kit with HDMI on.
It may be hard to notice or make you think you're just misremembering, but playing the stock screen for a couple hours and then going to the Super5 is shocking. It is blurry and it takes away from the image especially in native 720p stuff like first party games that normally look razor sharp.
I've attached a few pictures to give you a rough idea. Zoom in to see.
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It looks like the Super5 pictures are out of focus, but I assure you they are in focus if you zoom in!! Check out the hud comparison above and the weird artifacting on the "A" below.
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Text Comparison:
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The colors look.. nice, the contrast is of course fantastic, the extra bightness is welcome, but it still looks off. I use sRGB mode on the Super5 and Standard mode (not Vivid) on my Switch OLED, and the Super5 doesn't hold up against the stock OLED at all except for being brighter. Much blurrier and less accurate colors. At a normal viewing distance it looks okay, but small details get garbled.
This being a 1080p panel wasn't noted anywhere on the site, in videos, or anywhere else. I asked on Twitter about this before seeing this thread, and was ignored likely because they don't want people to find out. Yet another thing that has really annoyed me about this whole project. The lack of communication and specifics is frustrating when this is by design a niche product for enthusiasts who will notice this sort of thing. I honestly prefer the sharper stock screen in some ways.
Price is a factor too, this thing is a good deal, but the wait, poor communication, and advertising more new stuff when still waiting for these has rubbed me the wrong way, as has needing to ask questions on Twitter to get solid details that should have been communicated professionally. We only just now got confirmation that the Mega Kit with HDMI will work with modchips. The Mega Kit won't be here until April at the earliest. It's been a wild ride, and I don't think I'll be buying from Retro Remake again.
To end on a more positive note:
The silver lining here though... the screen appears to accept signals above 720p! This sounds obvious, but I wasn't sure if it would be locked down on Nintendo's software side, so this is very cool. This means on a modded system we should be able to run in docked mode and take full advantage of docked resolutions on a real Switch Lite handheld!
How do I know this? Hyrule Warriors DE actually runs at 1080p in handheld mode (on a stock Switch, no mods required)! Why? Who knows! But I booted that up and it looked suitably sharp and amazing on the Super5! Suddenly the screen comes alive and looks how it should, and I'm excited to test this when I get the Mega Kit installed on my modded Lite.