Using a kenable 10m cheap flat cable here for fttp.
Works fine though the cable is soft and can easily be damage if caught under the chair.
Why would you recommend flat cable unless op states it's part of the requirement, eg to run under carpet etc? Also, if you do suggest something that's not ideal, you at least take the time to explain why it's not recommended. Over a short distance like 10m it's less likely to cause issues, but it shouldn't be anyones default suggestion.
It will achieve Cat6 speeds, but its not Cat6 UTP specification.No choice for me, I had to use a flat cable to run under a door with just mm clearance.
Although it is cheap kenable list it as cat 6.