System info:

• Steam client version (build number or date):
  steam-runtime_0.20211207.0
  "Built Dec 16 2021, at 22:39:26"
• Distribution: Ubuntu 21.10
• Opted into Steam client beta?: Yes
• Have you checked for system updates?: Yes

Upon Pressing on Any Screenshot/Artwork From Any Game on the Community Hub

Would Result into Steam getting Stuck like this:

(Until You Mouse Click Somewhere random on the screen)

Resulting into an Open Prompt:

Meaning you can only Overwrite Existing files. Rather than Saving a new File.