We went against the grain so to speak and used feast watson chinese wood oil on tassie ok and pine throughout house.
This is close to natural. Oil permitates the wood like a cutting board.
Any scratches or issues you just sand a little and add a bit more oil. Only option of course.
Otherwise doesn't require any further maintaince. Floors should age gracefully over time.
This is a very natural and forgivving finish.
Polyurethene is hard warying, but far from natural. However with the hard core chemicals, the wood can't breathe, makes room toxic on hot days, and repairs require entire room or more to be done again - plus show scratches more.
It is back to nature vs glitz.
Keep it real and I would recommend a natural oil or wax any day in own home. If I was going to sell or in IP prob go the chemicals as that's what everyone wants and expects to see.