Sony Xperia 10 Home Launcher app is now available for installing on rooted and non-rooted Xperia devices. You need Android 9.0 Pie running on your Xperia device to install the Xperia 10 Home Launcher app.
Xperia 10 Home launcher App comes with the Wallpaper picker app. If you are looking to install Xperia 10 Live Wallpapers on your device running Android 9.0, get them from here.
Xperia 10 Home launcher
Download the Xperia 10 Home launcher app and Wallpaper Picker app from below links.
To install the apks your device, move the both downloaded apks to system/priv-app folder (tutorial here) and reboot your device.
For non-rooted Xperia devices: Download the below mentioned files and install like a normal apk.
Download XperiaLauncher v1.2.apk
Let us know if it works on your device? Drop your comments below.
Source: XDA (via niaboc79 & Sahaab)