iFixit documents separate battery, display and front-camera work for the fifth-generation Air, all involving access through the tablet's glued front.
What to check before buying
Display and camera
There are separate iFixit procedures for the Air 5 display and front camera. A camera fault need not mean replacing the entire display, but access still begins at the front assembly.
Battery service
The battery guide covers replacement on this generation. Its photos can include a different model with slight visual differences, so the specific Air 5 part and adhesive need to be matched before repair.