I don’t understand what you mean by “the intrinsic size”. What part of the image tag are your referring to?
<img
loading="lazy" src=".../test-the-kings-wark-pub-historical-pub-edinburgh-741x1000.jpg" width="741" height="1000" alt=" Image of dish at The Kings Wark pub" title="test-the-kings-wark-pub-historical-pub-edinburgh" class="size-medium wp-image-249" srcset=".../test-the-kings-wark-pub-historical-pub-edinburgh-741x1000.jpg 741w, .../test-the-kings-wark-pub-historical-pub-edinburgh-1037x1400.jpg 1037w, .../test-the-kings-wark-pub-historical-pub-edinburgh-768x1037.jpg 768w, .../test-the-kings-wark-pub-historical-pub-edinburgh-1137x1536.jpg 1137w, .../test-the-kings-wark-pub-historical-pub-edinburgh.jpg 1481w" sizes="(max-width: 741px) 100vw, 741px" /></div><div
class="lower-image">
The image tags look as I would expect them to look.
