20.1 for me so far

This is quite unnecessary so Ill give my view on this on a per question basis

Right It was your manufactures fault this the devs pressed release when the teaser ended so bring that up with Google/Apple or your software manufacturer

Hotfix is in the works have some patience most of us have this issue also give this a read
and check this link to check your device capabilities

This is due to servers being busy it will die down and it might fix the issues also check your internet connection. And run a Internet Speed Test

Im guessing your on Training Server they have no experience and no expectations. And if you fly into EGLL, KLAX, KJFK, etc there will be no time to deal with your aircraft fly elsewhere or better yet fly on Expert Server

Be patient and there are multiple topics about this. No need man.