Hello,
Android 11 beta version for Zenfone 5 ze620kl is online. While some are waiting for the android 10 update that ASUS will not release, you may have android 11. Requires root, no security problems. But since it is in beta version, it will not work stably. As seen in the video google play etc. does not exist. A stable and customizable version available on Google Play will be released in November.
To watch:
https://www.youtube.com/watch?v=D7ZbmJmb4nE
