Floppies are, in fact, volatile. They suffer from bit rot like CDs, and (AIUI) the magnetic flux is weaker and more prone to disappearing over time.

Plus, all floppy drives are now multiple decades old.

A new, modern removable magnetic disc format will certainly perform orders of magnitude better, but not anywhere close to to any other modern format in speed, density, or short-to-medium term stability.

We could make fantastic floppy drives today, but there is simply no economic reason to spend a billion dollars in R&D on it.