I feel your pain. That kernel has not been updated in a long time. I do not maintain that kernel but I do like to keep a couple of devices here up to date that uses that kernel so I have been keeping up with it here locally. I have never pushed it to the repo as I do not have any of the other devices that uses it to test on. So much water has gone under the bridge since that kernel and you know very well things can change with the upstream kernel from time to time where things can stop working.
I have linux-6.12.0-1 built for my vim3 and RockPro64 and you are welcome to give it a try but I highly recommend you make preparations beforehand so you can revert back to your older kernel if need to.
linux 6.12 kernel / kernel headers packages in a tarball Download