Incorrect icon file type

[interrealm]

Godot v4.1.1.stable.official [bd6af8e0e]

In the tutorial 'Your first 2D game', setting up the project, it says that the project folder should have an icon file named icon.png. However, mine loads up with icon.svg.

Setting up the project — Godot Engine (stable) documentation in English

vs

[AThousandShips]

That screenshot is indeed out of date, see below where the correct format is listed