So here's a branch of mine that features the latest LTS kernel,
v5.15.89 (forked off v5.15.13-1):
https://github.com/lynix/alarm-pkgbuilds/tree/linux-aarch64-lts/coreTook 5 hours to build natively on an Odroid C4. No issues so far.
Seen relatively to the latest repository version (5.19.8) this is partly a downgrade but also partly an upgrade as the 5.15 branch is actively maintained and is not affected by the CVEs that the repo version is. But given the version is lower I will not submit a pull request.
Maybe I could forge this into a new 'linux-aarch64-lts' package, similar to 'linux-lts' in Arch? BTW, thanks @graysky for your work with 'linux-aarch64-rc', I'll give that a test run on a Pi as well but on the Odroid I prefer LTS kernels.