Mortuus1

Hi all im looking to purchase an xf and when I went to view it the exhaust was moving up and down, the owner said they had seals done recently. I left the car and said I'd buy if fixed. I've now got a video of the car and the movement is a lot less. The seller said a seal was loose which is fixed now. can anyone view this and tell me if this movement seems fine or if not potentially what it could be. Much appreciated all. VID-20210731-WA0009.mp4