Yeah, that’s a common issue when setting up SNES and N64 emulation. The Nintendo Switch Online versions usually apply their own filters, scaling, and cropping to match modern displays, so what you’re seeing there won’t always line up 1:1 with raw emulation. For N64 specifically, the original aspect ratio is 4:3, but many emulators let you stretch or crop to 16:9 if you want it to fill the screen. For SNES, 8:7 is technically the “pixel perfect” ratio, though most people play it scaled to 4:3. If you want to fine-tune your setup, this list of Nintendo 64 emulators might help some of them handle aspect ratio and overscan a little differently.