Green Day in South Africa! (Setlist Discussion)

Green Day are headlining the Calabash Music Festival in South Africa on two dates. The first one was today, in Johannesburg and the second date is the 23rd, in Cape Town, my city, where I will see them perform. Their set is 120-140 minutes. According to wikipedia, this is part of the Saviors tour, so I expected them to play the same setlist they have been playing throughout the tour, but from what I've seen on Instagram, they played songs like 21 Guns and Hitchin' A Ride, which led me to believe that they probably just played a greatest hits setlist, but now I'm very confused about what to expect when they play in my city 😅