How do you fix an app icon that got associated with a file type in spotlight?
120121
How to Change File Type Associations?
9940
Remove app icon from title bar in GNOME in Ubuntu 18.04
147756
Update to 20.04: Missing icons and icon alignments
108890
Unexpectedly changing identicon
33541
How can I change the icon of an application in the Unity launcher?
4715
How do I merge two icon sets?
143171
Icons of Meta.SE and Stack Apps have gone missing
96257
How do you get the icon, MIME type, and application associated with a file in the Linux Desktop?
97836
Single application not showing up in Spotlight
136375
Some Windows 10 UWP icons not displaying on search, or in settings
154149
Set Icon for executable Jar file
9391
How do I remove extra Skype icon or ghost icons for removed apps from GNOME shell?
2448
Accidentally deleted icons in /usr/share, how do I get them back?
136261
How to remove app icons in system tray on Ubuntu 18.04 with GNOME
23890
App icons go missing on MacBook
141853
How to remove an icon from launchpad that does not appear in the Finder?
157492
.desktop files: how to specify the icon path