Resolution on sites

Hi Teddan1337,

To directly answer your question, SharePoint does not provide a built-in feature to change the resolution of a site in the sense of adjusting the screen resolution like you might do on a desktop computer. The site's layout and responsiveness are designed to adapt to different screen sizes and resolutions automatically.

If you're experiencing issues with the way your SharePoint site is displayed on your specific device and you want to improve its appearance, you should consider following the guidelines and recommendations provided in the article below regarding image sizes, aspect ratios, and layout configurations to ensure that your site looks its best on various devices and screen sizes.

Image sizing and scaling in SharePoint modern pages - Microsoft Support