Point 12 looks good but..
Since I did not find any update on Sailfish X and Salfish X 3.0 EA yet.. I hope that by the time the update finally arrives as a partial update, Android applications won't demand android 12 as a minimum for operation.
Or in the most optimistic scenario I don't see it as impossible to have a Sailfish OS native Fennec browser one day. After all it happened on Nokia N900 and that was more like a proof of concept due to RAM limitations.