For people who notice how a knife meets the board
A knife-friendly board is about the cutting moment. Glass, stone and very hard surfaces feel harsh because the blade hits a surface that does not give.
Wood feels different. With end grain, the blade meets upright fibres rather than a printed or sealed layer.
The proof is in the fibres
End grain boards are built from many blocks with the fibres facing upward. That construction takes more work, adds weight and asks for more care, but it changes how the knife meets the surface.
It is not necessary for every kitchen. For people who cook often and use good knives, it can be the more considered choice.
Care is part of the deal
A board that is kind to knives still needs simple care: wipe, dry, oil when dry and never put it in the dishwasher.
Made on request when useful
Tell us whether you cut daily, serve at the table or work with larger pieces of meat or bread. The right format depends on the moment, not on the word knife-friendly alone.