Multiple reports describe changes to Samsung’s DeX experience after devices are updated to One UI 8.5. In the cited testing, connecting a Galaxy phone to an external monitor triggers a DeX setup that feels improved compared with prior behavior. The account focuses on DeX performance and usability after the update, suggesting the update makes the desktop-like mode work more smoothly for a monitor setup. The source frames the experience as a surprise following the update, implying that noticeable differences appear when the phone is used with an external display. While the available details are limited to a single outlet and primarily anecdotal, the common theme is that One UI 8.5 enhances DeX functionality for users who connect their Galaxy devices to monitors. No specific feature list, device models, or measurable benchmarks are provided in the supplied material, so the report emphasizes observed improvements rather than enumerating exact changes. Overall, the information indicates that One UI 8.5 updates DeX for external-display use.