Thanks for the report @hayhut. We've had some previous reports of this on macOS (#9541), but not Windows. A few questions:

1. Any scaling settings on your machine, or multi-monitors?
2. Do you roughly remember when this started happening? (i.e. after a recent update)

One thing you could try would be to disable hardware acceleration to see if that helps at all. Here's how to do that:

1. Open PowerShell
2. Run the command $env:GITHUB_DESKTOP_DISABLE_HARDWARE_ACCELERATION=1

Let us know if that helps at all.

1. No scaling settings, all are at default on my monitors, i.e. 100% scaling in Windows settings.
2. Wednesday or Thursday of last week. I update my graphics card frequently (Nvidia RTX 2080 update 537.42.), so I may have updated it sometime last week, but I have seen no other blur issues like this in other Electron apps or any graphical issues in general.

Disabling hardware acceleration did not help.

Mystery solved. I opened ClipChamp today and noticed the same issue, and checked my other lesser used Electron apps and saw VS code and Obsidian had the issue. However, I don't have the issue in Slack and Discord.

I did some light research and found this comment that resolved my issue by disabling FXAA in Nvidia Control Panel and restarting everything. After that, I am now seeing clearly again.

This is seemingly a known Electron issue, so I'll close this issue.

That's amazing! Thank you so, so much! I couldn't be happier with how quickly you responded and of course, with how perfectly you provided the right answer!

I tried disabling hardware acceleration and also set Anti-aliasing FXAA to Off. The problem still persists.

windows 11 Home 24H4 (latest updates)
Gpu MX550
screen resolution

FSAA OFF was the solution so far ( lattest release GITHUB DESKTOP)
had the Issue