Only things I use are, if docked, are a 3rd party wired switch “pro” controller (both because of the controller itself and because of the headphone jack on it), and an as needed my Bluetooth trackball mouse and the wired keyboard I use for my desktop.
The only other things I really have for it for accessories would be the case it came with (if you count that) and a USB C to USB male connector I got before I had a dock (for plugging in a thumb drive when undocked to more discretely move downloaded files or don’t have internet access because I’m in a vehicle (mobile hotspot absolutely sucks)).
Only things I use are, if docked, are a 3rd party wired switch “pro” controller (both because of the controller itself and because of the headphone jack on it), and an as needed my Bluetooth trackball mouse and the wired keyboard I use for my desktop.
The only other things I really have for it for accessories would be the case it came with (if you count that) and a USB C to USB male connector I got before I had a dock (for plugging in a thumb drive when undocked to more discretely move downloaded files or don’t have internet access because I’m in a vehicle (mobile hotspot absolutely sucks)).