To your point, I've noticed open floor plans often offer less flexibility. E.g. having a formal dining room allows you to turn it into an office or another bedroom much more easily.
I do get amused about how everyone hates cube farms but loves open concept.
I thought open floors only became a thing because companies realized they can save money and workers would put up with it, which doesn't seem to be wrong.
I can put on noise cancelling headphones but I can't visually block out physical shenanigans, my monkey brain is tracking for threats.
Cube farms at least you can customize and claim “your space”.