Not to sound like an ass but that's your typical HNer hot take on a topic they don't know anything about (which is 99% of topics outside of tech).
I know that I don't know jack shit about the topic, but I can already tell you that if you do what you describe you'll quickly learn about why grids have frequencies, what generate these frequencies, and what happens when they drift.
Yeah that's what an inverter does, the "tie them to the grid" part. Every solar system has them, and they can islanding or not.