Suicide is the only way out
/e/ greatly reduces security vs. AOSP via added attack surface, weakened security model and slow patches.
https://eylenburg.github.io/android_comparison.htm
https://privsec.dev/posts/android/choosing-your-android-based-operating-system/
How about Reflectacles?
The biggest problem will be that depending on the country you live in, you simply won’t find the battery to replace it and there is simply no reliable parallel brand for the Google Pixel. iFixit sells the original battery but does not ship to any country