Flash miui 11 android 9 from PE android 10

[zlati]

Hi, will flashing miui 11 based on android 9 from Pixel Experience on android 10 trigger anti rollback since im going from android 10 to 9?
And do I only wipe data and cache/dalvik from twrp?

 

[ggkameleon]

For change any Rom do format data.
But do before a check for see your arb status.