Microsoft to Add Trackpad Support to Word, Excel, and PowerPoint Apps on iPad
iPadOS 13.4 introduced trackpad and mouse support on all iPad models released in the past four to five years. Keyboards with trackpads include Apple's Magic Keyboard and Brydge's Pro+ for the iPad Pro and Logitech's Combo for the 10.2-inch iPad and the 10.5-inch iPad Air.
When using a trackpad, the cursor displays as a circle on the screen, popping up only when you have a finger on the trackpad. The circle then morphs into various other shapes when hovering over app icons, text fields, or other on-screen elements.