This change comes in line after the iOS 14 update enabled Google Chrome to be set as the default internet browser. The official Gmail Twitter account added a GIF that explains to users how to actually set the app as your default email app on an iOS device. To set Gmail as the default email app on iOS devices, users will first need to update the app to the latest version and open the settings menu of their device. Then, proceed to scroll down and choose Gmail. Upon doing so, choose the Default Mail App and tap on Gmail. This will then set it as the default email app within your device.
— Gmail (@gmail) September 21, 2020 So if you’ve always been wanting to make a switch from the regular Apple email app for something different, be sure to update your Apple device to iOS 14 in order to have this feature enabled on your device. You can actually do the same with the Chrome browser. However, reports claim that a bug would eventually reset the apps back to Safari and Mail after restarting the device. (Source: Google via Engadget)