It definitely works. I just did it a couple of years ago.
In fact, no matter how long I left it in the freezer, I couldn't get all the data off. I ended up freezing it in the freezer, then putting it in a small cooler with a couple ice packs, with the wires hanging out between the cooler and lid. That gave me just enough to grab all the data (well, really, a couple of not-so-small VHDX files).
It was much fun, like a science experiment in high school.
In fact, no matter how long I left it in the freezer, I couldn't get all the data off. I ended up freezing it in the freezer, then putting it in a small cooler with a couple ice packs, with the wires hanging out between the cooler and lid. That gave me just enough to grab all the data (well, really, a couple of not-so-small VHDX files).
It was much fun, like a science experiment in high school.