It doesn’t look like the feature will be available yet for anyone playing Genshin Impact on Android, but this could be subject to change in the future.

Controller support will be coming to the upcoming Version 1.3 of the game and beyond for users on iOS 14 or higher. On PC, the preinstall button will appear next to the 'Launch' button a few days prior to release. Preinstalling depends on the players device. It is made available a few days prior to release.

We have a lot of Genshin Impact codes you can redeem for some exceptional prizes! Preinstallation is a function in Genshin Impact that downloads an upcoming major updates resources to the players device before that actual version is released. QAQ” to which miHoYo replied: “The developers have heard your cries - from Version 1.3 onwards, devices that have had their operating systems upgraded to iOS 14 or higher will now support the Xbox Wireless Controller (Bluetooth Version), Xbox Elite Wireless Controller Series 2, PlayStation DualShock 4 Wireless Controller, and iOS-specialized Bluetooth controllers (partial support)!” The third question in the post reads “We'd like to use controllers on iOS devices. The announcement came in the latest Developers Discussion for the game which outlines the current state of the game and details upcoming changes to it. MiHoYo is soon updating its gacha RPG Genshin Impact with official controller support on iOS and Android devices.

Genshin impact 1.3 pre installation