Megalomaniak
Thanks, I'm a bit surprise adding your game icon was not already an export option within Godot. (But I'm not planning to export anything now so it doesn't matter to me yet)
Anyway I probably messed up something and now Godot 3.5 no longer open any gd3 projects 🥲 It just open the Project Manger and when double click or use edit button the pop up says "the proj isn't associated with any version and it will use the appropriate version to open, are you sure to do this? (etc..)". And when I say yes the Godot Splash screen opens up then closes and I'm back at the Project manager. When I tried my Right Click "open as" on the project it just goes to Project manager too. (I tested with newly duplicated gd3 project each time and double check the manager version numbers)
The Godot 3.2 can still open my version 3 projects, but it leads me to another confusion lol. After I downloaded ver. 3.5 I changed my Godot 3.2 folder name by adding "xxx" in front as I no longer plan to use it (eg. exe folder name is now "xxxGodot_v3.2.3-stable.." but somehow right click a project then "open as" and I can still choose (by guessing on list of recent apps) Godot3.2 to open it. Maybe the .exe is embedded somewhere in my comp now or something.
I don't know anymore 😄 I will go back and use 3.2 along with 4 and just move on with my learning.