No idea about the filament swirchers, but calling core XY designs bambu clones is really funny.

The core XY design that all manufacturers are now centering around has been around long before Bambu existed as a company.

Core XY didn't exist in consumer printers outside of Vorons that took hours to build. If all a new company did was take an obvious concept and make it accessible, then that just reflects poorly on the previous market leaders.

The technical design maybe but they all look like bambu P1/X1 in terms of design.