A month is not a reasonable time for ASB, go talk to any AOSP engineer who designed this system. ASB patches specifically exist to quickly respond to emerging threats, in order to keep your system secure and free of vulnerabilites.
You linked to https://source.android.com/docs/security/features
Either you read the documentation, understand the Android security model and accept the fact that 1 month is not a reasonable time for ASB patches, or you continue to spread misinformation. I'm not quite sure if it's because of a lack of understanding, or simply because of ignorance. As Hanlon’s Razor goes:
Never attribute to malice that which is adequately explained by stupidity
Yes, it is much worse than stock Android
https://madaidans-insecurities.github.io/android.html#lineageos
https://eylenburg.github.io/android_comparison.htm