My Intel display controller also appears as “unknown”, however the correct kernel drivers are indeed installed. I wouldn’t worry about it.
Graphics:
Device-1: Intel Alder Lake-P Integrated Graphics vendor: CLEVO/KAPOK
driver: i915 v: kernel arch: Gen-12.2 process: Intel 10nm built: 2021-22+
ports: active: DP-1 off: eDP-1 empty: DP-2,DP-3,DP-4 bus-ID: 00:02.0
chip-ID: 8086:46a6 class-ID: 0300
Please post your system info as outlined here: