@Bismark You're incorrect about what happened. 2023120800 did not make any changes relevant to battery life. You're wrongly attributing things which have to do with your apps, usage and configuration to OS updates. There are frequent OS updates and you're blaming whatever issues you have on the most recent update or attributing the problems not occurring to a fix provided by an update when it didn't happen.
You won't have privacy or security without patches for vulnerabilities. You also won't have a working device and if you're asking for support without being on the latest release that's going to be wasting the time of people providing support. Are you going to disable app updates too? Otherwise, you're still getting updates from us anyway. Android 14 QPR1 included far more fixes than the new issues it introduced. You're throwing away your real privacy and security from apps, sites, services or attackers because you don't trust us. If you don't trust us, you shouldn't use GrapheneOS.