Screenshot managers opens with media keys if no keybind is set about screenshotviewer HOT 1 CLOSED

Hello, thank you for opening an issue.

Regarding this one it probably comes from the Logitech G HUB software as you implied or something else. By default, the screenshot manager keybinding is mapped as every undefined keybinding to an "Unknown Keybinding" with code -1.
When you're using media keys, GLFW (library that interprets inputs) probably doesn't recognize the key you pressed and just assumes you pressed a key with code -1, leading to the screenshot manager opening. However, I don't know why exactly the screenshot manager opens and not something else (as multiple controls are assigned to an "Unknown Keybinding", especially on modpacks).

I'm closing this issue, I'll try to fix it for the next Minecraft versions, and I might also try for Minecraft on Forge 1.19x.

from screenshotviewer.