https://en.wikipedia.org/wiki/Szabla_wz._34
While the polish were famously the last ones here, even the great powers had new functional designs made pretty late, e.g. the British and US in 1912/13
Probably would look like mall ninja shit, black 'tactical' look and stupid curves.
Modern soldiers still carry, and sometimes use, bayonets, and in some regiments they literally call them 'swords'. And they don't look like this toy.
I'm gonna assume you are not really informed about current (US) special forces equipment usage (i.e. the ones who regularly perform h2h combat). This particular item has been issued since something like 2004 to various units. In fact a few years ago there was a scandal in the Seal teams where a CO liked to ask his soldiers if they "had got blood on their hawks". I'm sure you can find some references, if you can be bothered.
I'm guessing you don't have much current military experience yourself.