Pixea is a minimalistic image viewer for macOS that offers a clean UI and lets you focus on the photo instead of bezels and controls. Alternatively, you can also use the Preview app to browse the photos on the Mac by pressing CMD+SHIFT+P on any image. You can then use the arrow keys to navigate to the folder and preview other images. Accessing QuickLook is extremely convenient and you can preview any image by selecting an image and pressing the space bar on the keyboard.
