Enables horizontal scrolling by holding down the Shift key and spinning the mouse wheel in Visual Studio (2017, 2019 and 2022).
This feature is available in many other programs. Once you're used to it, it is sorely missed.
Install the extension from the Visual Studio Marketplace:
https://marketplace.visualstudio.com/items?itemName=drewnoakes.SideScroller
Icon by Juraj Sedlák from the Noun Project, edited to be more VS-like in InkScape.