Image placing as wrong size despite "Resize Image During Place" unchecked
I have a 1280x720px project and an image that is 1059px tall I want to place as a layer, and I want it to remain that size to preserve its quality. However when I drag it into the image, it shrinks to 794px tall every time without fail despite "Resize Image During Place" being unchecked. I also have them set to import not as Smart Objects, because I don't know what a Smart Object is (only that you can't edit them, and I am bringing these in with the intent to edit them).
What's baffling me is that this isn't happening universally with every image. Some place just fine. Others shrink dramatically, like a 1280x1280 image shrinking down 293x308px. I have no idea what's going on nor why these images are being resized despite not wanting any resizing to occur.
I am very new to Photoshop but have been using Gimp for years and never encountered this issue, so I am at a loss. Any help for this Photoshop beginner is appreciated!

