The standard hand-held remote controller for several DJI aerial camera drones is RC-N1. (These drones include DJI Mini 2, Mini 3, Mavic 3, Mavic Air 2 and 2S.) While this controller includes a small USB cable that hides when not in use, the cable commonly cannot be attached to a smartphone if that phone has a protective case. It fits any phone with a USB-C port but not if there is a protective case on the phone.
Here are two products that solve that problem. One is an adapter and the other is a replacement cable.
USB C 3.1 Extension Cable 90 Degree Male to Male Gen 2 (10Gbps)
USB C 90 Degree Adapter Up Down (2 Pack) Low Profile
I keep the adapter in my drone carry bag for when I might need it. As it is quick and easy to attach, there is no need to leave it attached at all times.
The replacement cable is a bit thicker and bulkier than the standard DJI cable; it does not store nicely in the folded controller; see the photo here. You can decide for yourself if this is acceptable.