The events that Eobard Thawne mentions about his death at the hands of Black Flash happened in Aruba (2017). That means this is a completely different Eobard Thawne, possibly from a different Earth, from the one the Flash was dealing with up until Armageddon, Part 5 (2021).
Astra brings with her a cassette tape of E.L.O.'s "Time" album. E.L.O. were known as The Electric Light Orchestra, a classical rock band from Birmingham, England, and the "Time" album was released in 1981.
When Robo Steel/Nate malfunctions and adopts the Austrian accent that is a parody of Arnold Schwarzenegger, which is fitting because he famously played the T101, a time-traveling killer robot sent by an AI, in The Terminator (1984).