I had a USB sound card that, on windows, would play back at 48kHz instead of 44.1kHz. Slight pitch shift upwards, playback at 8% faster. Most apps just let the audio driver provide backpressure and don't actively try to send data at the rate the soundcard is expecting, they just feed bytes when asked.

Even more fun was that it was a dual-boot machine, and the audio worked perfectly in Linux but shifted up in Windows. I honestly thought I was losing my mind for a while. I'd listen to the same song in Spotify on both OSes and just get this "something is wrong here..." feeling in my gut.