“Particle” was just the most likely metaphor to use to describe what can’t be seen, and will never be seen, whatever the hell it is.
PS. Schrodinger’s imaginary “cat” is either alive or not alive. There is no middle ground between a statement and its negation.
Schrodingers imaginary cat is either alive or not alive.
But glue a piece of buttered toast to its back and
throw it up in the air and see what happens...