LumaFusion (paid, $39.99) is most popular video editing app on iPad OS. It’s pretty straight-forward, my iPad Pro 12.9 (2018) exports 4k footage in real-time. Video editing on iPad is more fun IMHO.
Make sure you have right accessories, I would recommend -
1. an external SSD (LumaFusion can directly import/export from external storage), never have to worry about internal storage.
2. an Apple pencil or Pencil alternative from Amazon at $40, I love working on timeline with pencil, sliders are so easy to move. iPad OS also supports mouse, but mouse obviously needs a table whereas pencil doesn’t.
3. USB-C hub/dock, obviously. One with SD Card reader, PD Delivery, USB 3.0 etc
Why I prefer iPad+LumaFusion over my laptops? Because it doesn’t heat-up and freakin burn my thighs esp. now in summers, doesn’t sound like jet engine about to take off. You can literally do video editing while on bed.