You don't have to have anything in a movie. The question isn't "why include hip things", the question is "were those hip things just tacked in". They weren't. They served a purpose.
You could replace them with some generic thing, I suppose. But how would that make the movie better?
Meanwhile, if you eliminate them, the story gets worse. Unlike most product placements, which are at best removable background and at worse make the movie worse.
Meanwhile, I imagine Zoom arose naturally to solve the speakerphone but still need to see characters issue. I'm guessing Among Us was added because someone on the set played it and thought it would add something, and Twitch seems like the best real-life example of someplace that you would expect a modern tech mogul to help someone set up a streaming channel. Far from being tacked in, those seem like the best possible solutions to those problems.
And COVID is a fact now. You could release a movie in NYC in 2003 with the Twin Towers still in them, but I don't think people would claim you were being "hip" removing them. They would say you seem out of touch for leaving them in. Even if the story was set in "indefinite past time when they still could have existed"