According to the following announcement by the European Commission, temporary internal border controls have been reintroduced for certain countries (FR; AT; DE; DK; SE; NO):
As such, I am worried about traveling within the Schengen Zone on a single-entry Schengen tourist visa.
I plan to travel by airplane from Rome to Vienna, Vienna to Berlin, and Berlin to Amsterdam, all in October. I also plan to travel to Paris by train from Brussels.
Due to the temporary internal borders, will there be immigration/passport controls at the departure airports and at the arrival airports?
Likewise, will there be passport controls at the train stations when leaving Brussels and arriving at Paris?
Will it be an issue to travel by airplane on a single-entry Schengen visa due to the temporary borders?
N.B. The reason for posting this question is that I was worried stamping passport would be necessary at any internal border control, which would require me to have a multiple-entry visa.