Source: SamMobile
Wireless DeX on the PC option was first introduced with the Galaxy S21 series, and now Samsung is rolling this feature out to older Galaxy flagships through the One UI 3.1 update. Galaxy flagships starting with the Galaxy S10 series will gain access to this functionality.
These phones include Galaxy S10e, Galaxy S10, Galaxy S10+, Galaxy Note 10, Galaxy Note 10+, Galaxy S20, Galaxy S20+, Galaxy S20 Ultra, Galaxy S20 FE, Galaxy Note 20, Galaxy Note 20 Ultra, Galaxy Fold, Galaxy Z Flip, Galaxy Z Flip 5G, and the Galaxy Z Fold 2.
To run the feature, you'll need to install the Samsung DeX for PC app on your macOS or Windows 10 machine. And your compatible PC and Galaxy device need to be connected to the same Wi-Fi network to work.
Source: SamMobile