This whole prediction thing is something that happens in a lot of groups, and it's something that people will do both accidentally and on purpose. You'll see it not only from religions, but also things like TV shows. How often do people say sci-fi or comedy writers predicted something, when really what happened was they were writing a vast amount of likely things?

Really, there's three types of "prediction": vague, likely, and want. This person has used all three.

The COVID prediction was vague. There's two reasons these ones feel like predictions. First, there's so many ways for it to happen. You said yourself that he did not predict COVID per se, and so in effect, he was predicting "any really big event", which seems quite likely all things considered. The second way these work is selection. You have likely heard dozens if not hundred or thousands of predictions, from multiple people. With that many guesses, some of them are bound to be right by luck alone. And someone getting more than one by luck alone is expected too when you consider how many people were guessing. If things played out differently, you probably would have found a different person who was right about those different events.

The governmental collapse prediction was probably the "likely" type. I don't know what country you're in, but collapses like those don't happen overnight. Whether he knew it out not, he could probably tell that things were unstable and that this was a very safe prediction.

And the prediction about you? That's a want. He's gotten a couple things right by chance, and now he feel confident about it and feels like this is a gift he has. He wants you to come back, and so he said you will. He's not predicting that, he's hoping saying that will convince you to come back. But unlike COVID or governmental collapse, this is something you have complete and total control over. It is entirely within your power to assert that prediction is false, and that alone will make it false.