Using instructions at: https://www.dell.com/support/kbdoc/en-us/000203830/webcam-is-not-detected-on-xps-13-plus-9320-laptops-running-ubuntu-22-04,
I got the xps-9320 built-in webcam working under Mint 21.3 and under Mint 22 (Wilma) too, but not Mint 22.1 (Xia), or kde neon 6.25 using driver libcamhal0.
Apps that work: Cheese 44.1
Apps that don’t work: Camera 47.1, Cameractrls 0.6.7
Driver that doesn’t work: intel-ipu6-dkms
I got Zoom working too on Mint 22 (Wilma), and Mint 21.3
kde neon is based on ubuntu, so I think this should work. kde neon doesn’t have a driver manager, like mint.