SD 845 is compatible with android 11, still, we didn't receive any security update for 2021 ZenUI 6 is full stock, so it is easy to give OTA update, zenfone 6z stated receiving beta version of android 11
Please fact check your comment before replying redmi note 5 is an relic of the past at this point that phone is dead on android pie on probably an very outdated 2019 or early 2020 security patch (I guess the former)
Miui versions are not equal to new android versions as a matter of fact the new miui 12 recently incorporated android 10 gestures and miui 12 is supposedly based on A11 they just say their miui versions are based on new versions but in reality that's not the case and it doesn't incorporate the features new os offers
