Yep, as already said, very common issue on a lot of RVs. They use cheap, fake leather that starts flaking apart after a couple years. And, it always seems to start happening right after warranty is up, so manufacturer probably isn't going to be much help.
We had this happen on our 2012 Forest River Georgetown we used to own, not 2 years after we bought it (new). Ended up taking it to a local upholstery shop and had both captain chairs and the sofa re-upholstered with good quality leather. Was fine after that, new upholstery was still in great shape after several more years of use and when we traded that rig back in 2021.
So far (knock on wood), this hasn't been an issue on our Newmar after 2 years of quite a bit of use. Newmar seems to use good quality furniture made from better material.
Will and Cheryl
2021 Newmar Baystar 3014 on F53 (7.3 V8) Chassis ("Brook")
2018 Jeep Wrangler JK ("Wilbur")