That looks like a nice peacoat but the giveaway is the shoulder drapage. It either doesn't button up, she's got a Tess situation with her arms and cannot get it over them or she can struggle into it but it makes her look like a giant fucking pumpkin (way too easy with a solid orange garment) which is not the look she was aiming for.
I will never get this FA thing of eschewing anything that flatters them and showing off their worst, fattiest, most damaged areas with this odd pride. Normal weight people don't feel the need to do this, why do fat ones? Anna's thighs and knees are utterly fucked with fat deposits and she's someone who looks way better in draped flowing skirts, not trying to show off above the knee, clingy, bodycon/pencil type things. All they do is draw the eye to the precise place that looks the worst. Does she really go out like this, I mean in everyday life, not just popping out for a quick photoshoot? I can't imagine she does. For all her bravado, I feel the self-consciousness emanating off her when she's doing her public FA stunts. Doesn't really surprise me someone like this drinks so much. probably trying to drown her self-hatred or self-consciousness about how bad she looks in the cold light of day.