2.1. IMG tag only, + native lazy load + lazy load by Lazysizes - resolution switching: Same size, different resolutions

2.1. IMG tag only, + native lazy load + lazy load by Lazysizes - resolution switching: Same size, different resolutions — long Description here which appears close by the image - 2.1. IMG tag only, + native lazy load + lazy load by Lazysizes - resolution switching: Same size, different resolutions.