Quick answer: Construct 3 pixel-snapped objects unsnapping at non-integer camera zoom? Snap is in world coords; zoom applies in screen - quantize at the camera level.
Pixel-art game; zoom to 1.5x; sprites visibly blur at sub-pixel positions.
Quantize zoom
Snap zoom to integer or half-integer. Sub-pixel zoom eliminated.
Or use point filter
Texture filter = nearest; sub-pixel zoom still produces sharp edges.
Render at native then upscale
Internal render target at native res; upscale to display. Crisp regardless of zoom.
“Pixel snap is at object level. Zoom is at view level. Mismatch is the bug.”
For pixel art with zoom, the internal-render-target approach is the cleanest. Plan it.