So I've installed it, here are some important points worth mentioning :
1- no camera 2 api
2- no ARCore
3- The device personalisation services which is the app responsible for app suggestions in app menu and smart replies etc. is now visible via app menu and it shouldn't
4- Google play music is now force installed, you could uninstall it in pie and Oreo
5- remember how we complained about xiaomi not adopting to new Google material design guide lines by making dialog corners edgy ? Well it became seriously worse, everything is pointy and I don't like it
6- Google Assistant gestures are not working
7- all new features are working pretty well including new gestures and system wide dark mode and new theming options in developer options, tho unlike pixels system wide dark mode doesn't apply at boot screen
8- I suspect there's again some noises coming from camera, better check that yourself
9- there's an annoying banner in settings about some suggestions which you can't get rid of , possibly because of Device Personalisation Services app being faulty
10- if you have 2 users set on your phone you can't see the user switcher until you turn it on and off in settings
11- The security patch is still from December so expect another OTA in near days before next month which possibly includes bug fixes and January patch
12- some quick step ( default launcher ) features aren't working, you wanna guess which ? You're damn right, the ones related to Device Personalisation Services.
13- a lot of lagging, well there's nothing really there to say about it, is it? Expect some annoying lags.
14- the trusted face option is removed from smart Lock so you can't unlock your device with face recognition at the moment.
No boot loop (I was afraid)
It took about 5 minutes to restart, after password took about 3 minutes with the message your phone is starting, and it restarted again, then everything is fine.
*Camera API2 not enabled, (Though this would be it but...Xiaomi)
*the downloads issue from past update is gone
*camera seems fine,
*there's this app called "Device Personalization Services" which just crashes, it can be unistalled though
*persistance Custumize your Mi A2 message at the top of settings (can't dissmiss it)
Everything else seems fine so far.
I've tried a few things but all do not work well:
<boolean name="com.google.android.gm/com.google.android.gm.setup.AccountSetupFinalGmailSuggestions_is_dismissed" value="[B]true[/B]" /> <boolean name="com.android.settings/com.android.settings.notification.ZenSuggestionActivity_is_dismissed" value="[B]true[/B]" />