Yep, agreed! Clear communication is key! I can only share my experience, and it indicates that 120kg is ok for a 103kg rider. Making the total weight (inc 23.5kg bike weight) 126.5kg for the the spec of the Focus bike I have.
For my use case, I purchased the Focus Thron2 6.9 in XL. I weigh 103kg, and I've been over many jumps, including an accident of an 18ft drop off a ledge that gave way, held on for dear life, bottomed out the suspension, but no issue with the bike wheels, frame, or suspension damage still all tip...