When Apple released iPadOS 13.4 recently it came with an unexpected feature; trackpad and mouse support. Apple plans to release a Magic Keyboard for iPad Pro that has a built-in trackpad in May but in the meantime, you can control an iPad entirely via a Magic Trackpad 2 (the wedge-like one that recharges via a Lightning port).
Pair it in Settings > Bluetooth and look for settings in Settings > General > Trackpad. Apple did an impressive job with integrating a cursor into the iPadOS experience. The small, circular cursor shifts color subtly depending on the background and becomes a highlighted selection rectangle when over objects. It expands icons on the Home screen and morphs into a thin insertion point when in text. Plus, Apple built-in oodles of two- and three-finger gestures to mimic what you can do directly on the iPad screen. See the full list at TidBITS.
(Featured image by Adam Engst)