in the rear ( on my 2006 lexor) the mount is screwed through the carpet into the floor with 6 or 8 wood screws.
kind like this one:
the round aluminum mount stands proud of the floor and after stumbling on it ( trying to be quiet at night- and being NOT quiet) I removed it
we don't use our tables preferring to use a picnic table or a tray on the lap
this has opened up storage space- the bottom of our armoire has a sliding basket which holds the pot and pans N stuff. above that we have a couple of shelves.
the armoire is now the pantry
under the base of that a cabinet is the water pump- also a good hidey hole for valuables/passports.
also stored is the top drawer unit ( from the back) and the shower pan- that storage space is used for a small solar cell
If you are big on tables, you can also get a base to use your mast and table outside or get one of the above and screw it to a piece of plywood