Info about Xiaomi Redmi Note 4 - mido is now classified as “Legacy” and as such no longer officially supported.
With complex apps like App Lounge and Autora Store, there will a high chance they will not work on such an old build.
There is now an unofficial build [UNOFFICIAL BUILD] Xiaomi Redmi Note 4 [Snapdragon] (mido) for /e/OS-T, it would probably be worth trying this.