I like to think I'm a pretty chill vegan, but I have a hard time believing you're vegan if you constantly flaunt your leather products. Just say you follow a plant-based diet and be done with it. It'd be one thing if it was a generic leather bag from years ago, but it's a trendy, statement bag that other people might want to buy. When you have the number of followers she does your fashion choices don't exist in a vacuum, and it's obvious from the comments people already want the bag she is holding.
It's weird that she uses the argument that she had the bag from years ago as a defence when we know she has constantly bought new leather products since being vegan. I don't believe that buying all your leather products from secondhand/vintage sites is suddenly ethical - especially when it comes to luxury goods, purchases from the secondhand market feed back to the primary market, fuelling demand. You have to be deluded to believe that buying a Fendi bag from Vestiaire Collective instead of Selfridges suddenly means that you aren't impacting the overall demand for Fendi bags. I completely understand not suddenly throwing away all your leather goods, but continuing to purchase them secondhand from big retailers is hardly the actions of an ethical vegan.
And note that when she first went vegan, she was absolutely taking the stance of an ethical vegan (i.e. she went vegan because she didn't want to contribute to animal suffering), but her flaunting of leather goods tells me she isn't too concerned with this anymore. I think she is trying to promote the environmental veganism approach - i.e. it's okay to wear a dead animal because vegan bags are made of plastic and that's way worse because plastic is the devil, which is a bit a tenuous ethical justification.