My partner is right leaning and I am left leaning. It works well for us because we never fight over who gets the good spot on the couch - my good spot is with the arm rest to the left of me and his is the arm rest to the right of him. It’s probably not good for our backs to lean the same way all the time though.
My boyfriend and I are both left leaning though I’m a bit more progressive than he is.
My partner is right leaning and I am left leaning. It works well for us because we never fight over who gets the good spot on the couch - my good spot is with the arm rest to the left of me and his is the arm rest to the right of him. It’s probably not good for our backs to lean the same way all the time though.