Icon on Linux Panel (Taskbar) is not Obsidian Icon, but "cog" icon

I use Obsidian appimage version 1.5.3 in Linux Mint 21.2 Cinnamon ver 5.8.4

This is my first time installing Obsidian on Linux system. I got curious to why the icon in the panel is not Obsidian icon, but a it shows a cog/gear. This makes my workflow to be a little bit hindered because when there are a lot of icon in the panel, I need to adjust my mind to look for cog icon and not Obsidian icon. It always triped me into thinking that I am going to open “setting”.

Is there anyone with the same problem? How do I fix it?