I don't know if euro qualifications refs where the watch that detect when the ball is across the line like leagues does, then it may not lead to a case of Var,
There is no goal post refs in the ongoing Europe qualifiers, watching from different angles the defender was a bit very fast to clear the ball from the goal line and from where the refs were positioned it was impossible to see it very clear. We have seen something more than this in the past.
If Ronaldo threw his arm band I think it's a passionate frustration, unprofessional though but it's just adrenaline rush.
If he could throw the whole nation on the floor then I wonder what would happen if he loses a goal in a cup final match. So pathetic, get the armband from him period!!!