The $20 bills we see appear to all still feature Queen Elizabeth II’s portrait, despite the fact that this episode presumably takes place after 2024. Which would seem to indicate that the process of replacing the queen’s portrait with that of King Chuck III is really dragging, and not that this episode was filmed on location seven months before the queen’s passing in 2022.
Sera mentions at the Singh Institute that Khan's assassination was supposed to happen in 1992, that time keeps pushing back, and that this is the first opportunity she's had in 30 years to kill him. So this episode could have happened before 2024.
The bridge that the Romulans attacked does not exist and is not in construction. Granted, Star Trek is not real, but the contemporary episodes are at least intended to mirror reality.
I'm assuming Sera was generalizing when she said it had been 30 years, but it's entirely possible that I'm wrong.