gnome-shell-no-screenshot-notification/disable-screenshot-sound.patch

--- a/js/ui/screenshot.js
+++ b/js/ui/screenshot.js
@@ -2385,8 +2343,7 @@ export async function captureScreenshot(texture, geometry, scale, cursor) {
     if (cursor === null)
         cursor = {texture: null, x: 0, y: 0, scale: 1};

-    global.display.get_sound_player().play_from_theme(
-        'screen-capture', _('Screenshot taken'), null);
+    // patched: do not play a sound when taking a screenshot

     const pixbuf = await Shell.Screenshot.composite_to_stream(
         texture,
@@ -2548,9 +2505,7 @@ export class ScreenshotService {
             shooter.connect('screenshot_taken', (s, area) => {
                 const flashspot = new Flashspot(area);
                 flashspot.fire(resolve);
-
-                global.display.get_sound_player().play_from_theme(
-                    'screen-capture', _('Screenshot taken'), null);
+                // patched: do not play a sound when taking a screenshot
             });
         });
     }
    }