In search of poncho/cape/housecoat that won't choke me as a 2XL with broad shoulders! Link to example in body text - please help a clueless tomboy lol

I am a solid 2XL with broad shoulders, fairly big kahunas and really long arms and I also really do not like things pulling on or constricting my neck in any way. I'd love a light to medium-weight poncho or housecoat that I can just throw on and go about my day as sometimes I just get too dang cold up here in New England and most sweaters/hoodies don't sit right on my shoulders (they tend to make my shirts pull backwards thus constricting my neck) or they don't have long enough arms. In searching Amazon, I found this one but reviews suggest it's made for smaller people. I rarely buy new clothes and if I do it's usually at Walmart or a thrift store, I'm not up on what these things are even called lol I am just a tomboy who wants to get warm and keep my arms free at the same time. I'd even be up for a housecoat type of thing but there's not a whole lot out there. I'm having a hysterectomy in 3 weeks so I'd like to have it before then as I may not feel up to wearing most of my normal clothes for a while. Thanks for any help!

Example poncho thing