Silent disconnect on Intel Wireless-AC 7260 when used in Access Point mode since kernel 6.16

Description:

I use an (old) Intel card as an Access Point for my wifi devices. This was stable until I got back back from my august vacation, when I started noticing my devices (ranging from android phones, to my steam deck) randomly losing connectivity after 10-20s, despite a fully functional internet connection being established. No logs of this are produced anywhere on my host machine running arch. Long story short, after some investigation I found downgrading the kernel to 6.15.9 fixes the issue. There are no kernel instability signs or anything out of the ordinary to report outside of this.

Additional info:

• connection instability from linux-6.16.arch1-1-x86_64 upwards.
• linux-6.15.9.arch1-1-x86_64 works flawlessly.
• lspci output and iwlwifi-related kernel messages are identical with either kernel
• only visible difference in logs is wpa-supplicant reporting AP-STA-DISCONNECTED whenever a device drops (duh)

Not sure if anyone has the same hardware, so if you can give me a pointer to how I could possibly bisect the kernel or exactly where in the kernel mailing list I should report this it would be very helpful