Transport from AIRPORT: CAT TRAIN- (LIME GREEN 16 MIN TRAIN FROM AIRPORT TO CITY)- LETS YOU OUT RIGHT BY THE HILTON HOTEL OR OBB- cheaper but a little bit more difficult.
Short video to explain PUBLIC TRANSPORT WITHIN THE CITY: https://youtube.com/shorts/WrMIwOqydz4?si=WEXsjRg4fASlpvmz
BUS/TRAMS/METRO IN CITY:
Google Maps: search your destination and click the second botton from the left. It looks like a train emoji. This will give you all options to get to your destination.
BEST video to explain tram/bus/metro: https://www.youtube.com/watch?v=VsbXWhkkJqc
WienMobil/ app for tickets: cheaper to buy a 3 day pass then single tickets every time.