For M series users.

[Raviijangra]

A lot of app update available.

[m20userMonirul]

why isn't pie update coming in m20 automatically?

[DrPeter]

if you wait for 4-6 days without checking manually, the update will automatically come.
I have experienced this.
when my device received a update, I waited for 4 days.
on 4th day, it had come automatically.

[ItsMe-Amit]

you are lucky that you haven't reseted your phone neither most of these application not supported in M Series pie update.