After you file

Yes. Different browsers, different devices. Even the android app will not autofill. From posts online, lots of potential customers are unable to autofill TurboTax. Although I've used TurboTax for many years I now strongly recommend others not use TurboTax given that like other people I've spent hours trying to get it to work and it's not being fixed. Spending millions on advertising everywhere instead of putting resources in making sure the software actually works was a poor choice.