Samsung
Change Screen Zoom auf Samsung
Screen zoom controls how large the whole interface appears on a Samsung phone. It does not just resize fonts. Icons, app layouts, the navigation bar and system menus all scale together, because Screen zoom actually changes the effective screen resolution rather than a single text size value.
This is why a low zoom level packs more content on screen but makes text harder to read, while a high zoom level improves readability but can cut off buttons or labels in apps that were not built for larger scaling.
Where to find the setting
Open Settings ➔ Display ➔ Screen zoom. Drag the slider left or right, then confirm to apply the new zoom level. The screen preview updates live, so you can check how home screen icons and text react before saving.
If only the font looks wrong but everything else is fine, a separate Font size option inside the same Display menu is the better fix. Use Screen zoom when icons, spacing and the navigation bar also need to shrink or grow, not just the text.
After changing the zoom level, check apps with dense layouts, such as banking or messaging apps, since these are most likely to show cut-off buttons at extreme zoom settings.