Maybe for placeholders...but honestly it takes very little time to be able to whip up rough pixelart sprites and animations yourself. And they'll probably be be

Maybe for placeholders...but honestly it takes very little time to be able to whip up rough pixelart sprites and animations yourself. And they'll probably be better in many ways. But a game's quality is honestly mostly art & music & other non-automatable creativity rather than the software. I highly recommend treating art and music education as core to indie gamedev education.