MT7925 low speed

Provided:
Asus Zenbook um5606 with MT7925 card.

3 wi-fi speedtests were done via liveusb:

  1. CachyOS [ kernel 6.13.0, linux-firmware 2025.01 ] - 500/400
  2. Archlinux [ kernel 6.10, linux-firmware 2024.x ] - 500/400
  3. Archlinux [ kernel 6.13.3, linux-firmware 2025.02 ] - 150/40

Fourth test is from my Arch currently installed [ kernel 6.13.6, linux-firmware 2025.03 ] - 150/80

Can you shed some light - does CachyOS devs patch kernel regarding Mediatek chips or even linux-firmware ?

P.s. I doubt to switch to CachyOS due to possible firmware / kernel updates that can break my wi-fi speed again as Archlinux did.

Not that I’m aware of (I’m the kernel maintainer).