I moved in to a new apt. Previous owner left a full motion tv mount bolted on the wall. No sticker or markings indicating max weight or recommended TV dimension it will hold. The screw holes on the mount match the screw holes of my Samsung 65”. More information: tv mount seems to fit 400×400. But I’m worried to bolt the tv on as it might fall. Can anyone confirm if this tv mount can hold a 65” flat screen?