When installing 2018 models using the no gap mount, is there still space for the one connect cable to sit behind the TV? Wouldn't be able to get a recessed box in the bottom area where the one connect cable plugs in, on this fireplace wall.

Bottom of any wall box would at or slightly above the mid point on the TV and left of center due to framing and masonry.

Will depend on if I can go Art or will have to go with Q9 or Q7 with regular mount then if there is no space at all.