skyfaller, (edited ) Which alternate OS should I install on my backup Android phone, a Google Pixel 5a 5G? I was going to test #GrapheneOS, but I waited a while and now my phone is only supported until August 2024. https://grapheneos.org/faq#device-lifetime
This is a problem plaguing all Android devices, they become very difficult to keep secure once Google stops providing security updates. #CalyxOS seems to provide an extra year: https://calyxos.org/docs/guide/device-support/
I can't find info on long-term security for #LineageOS. https://lineageos.org/