Comment 23 for bug 2049220

After enabling the proposed repository following the instructions you provided and running apt update, I did not see the updated package, so I've downloaded https://launchpad.net/ubuntu/+source/linux-firmware/20220329.git681281e4-0ubuntu3.28/+build/27759768/+files/linux-firmware_20220329.git681281e4-0ubuntu3.28_all.deb and installed it with QApt.

After rebooting, I can see
lizsquir@PiMutant:~/Downloads$ sudo dmesg | grep mt
[sudo] password for lizsquir:
[ 7.182856] mt7921e 0000:03:00.0: enabling device (0000 -> 0002)
[ 7.190207] mt7921e 0000:03:00.0: ASIC revision: 79610010
[ 7.278615] mt7921e 0000:03:00.0: HW/SW Version: 0x8a108a10, Build Time: 20231109190918a
[ 7.539254] mt7921e 0000:03:00.0: WM Firmware Version: ____010000, Build Time: 20231109190959
[ 8.367928] mt7921e 0000:03:00.0 wlp3s0: renamed from wlan0

For me, the bug manifested in WiFi freezing (https://askubuntu.com/questions/1499938/kubuntu-22-04-wifi-freeze-after-hwe-kernel-upgrade-to-6-5-was-fine-on-6-2/1502925#1502925) - I did not pay attention to IPv6. I've not had the issue reoccur in the 8 hours since installing the proposed package.