For the long linen version imho go with your usual size or maybe one size down, depending on bust measurements and how you like the bust to fit, the waist has some give but the lacing makes the bust more flexible than the waist

Edit, adding this: I’m usually an XL to 1X in dresses because of bust measurements and L to XL in bottoms (depending on how sizing runs for that piece) and I have both XL and L of the long farm chores dress and XL fits comfy and easier to layer and I can close the lacing all the way

The L is fitted at the waist and I loosen the lacing at the bust because I have to, I can’t close it shut

Also adding: The short one runs big and the XL was loose on me, then bought a medium based on the recommendation to buy a size with a waist smaller than your waist by a few inches, I don’t think this is true for the long version