4 speakers in a large room

Would appreciate some opinions about connecting four bookshelf speakers in a large room at home (the room is an open space where I have kitchen and dining/living room).

I have 4 bookshelf speakers (Dali Spektor 1) at the corners pointing towards the center. This is for ambient sound, easy listening while I’m cooking.

I don’t have them connected to an amplifier yet and my question is: should I hook them as two stereo pairs (A and B to an amplifier with two sets of outputs); Or should I search for an amplifier providing mono outputs, so all speakers play the same? Which option is the best for this kind of arrangement? I know in Pro Audio, the speakers at a venue work in mono. Should I do the same? Will two stereo pairs sound “strange”?