You can move apps to an SD card from an Android phone's Settings with just a few taps, helping free up your phone's internal storage.

It’s slightly easier to transfer files to your Android phone and the SD card on that phone with a PC, simply because you don’t need to download the Android File Transfer app to transfer files. Step 1: ...

If your Android phone is running out of storage space, many phones will allow you to insert an SD card, which you can set as the phone's primary storage.

If your ROG Ally is running out of storage, you can move and install games on an SD card.

However, SD Express cards are backward compatible, meaning they will function in your Android phone, albeit at reduced speeds. That is assuming, of course, you even have an SD card slot.