"Copy to clipboard" doesn't have valid image data

[braiam]

Your system information

• Steam client version (build number or date): 1731716808

• Distribution (e.g. Ubuntu): Debian

• Opted into Steam client beta?: Yes

• Have you checked for system updates?: Yes

• Steam Logs: steam-logs.tar.gz

• GPU: AMD RX 6750 XT

Please describe your issue in as much detail as possible:

When I use "copy to clipboard" to copy image data, I expect being able to "paste" it to several applications: browsers, discord, gimp, etc. That doesn't happen. Other than Firefox browser and the LibreOffice suite, applications either claim that there's nothing on the keyboard, or in the case of GIMP that "There is no image data in the clipboard to paste". Images generated and copied to the clipboard from any of these applications is pasteable in every other application. Obviously, the Steam client is doing something wrong.

Steps for reproducing this issue:

1. Take a screenshot of any game
2. Open GIMP
3. Try to paste it on a new document, or import it from clipboard

[DmanMC]

Steam is copying the image file itself, rather than the image data that most apps expect. You can paste the file directly to your desktop or file manager, something you (normally) can't do with a raw image.