FWIW many pianos (and other string/tine instruments) are/were stretch tuned .. which adds more complexity to the situation .. but we as humans normally accept this inharmonicity when listening. Part of the character/timbre of the expected sound.
Some 'studio' pianos may have been tuned closer to true .. but many home/recreation pianos have this aspect in play.

https://en.wikipedia.org/wiki/Stretched_tuning

In my experience most pianos you find for sale in stores have this type of tuning to give a certain desirable sound and 'liveness/depth'.

/my parents owned a store that sold pianos
//my best friend's dad tuned pianos for a living, so learned a lot watching him tune our pianos


Make your sound your own!
.. I do not work here, but the benefits are still awesome