Gmail had included a simple audio player for a few years (since at least 2006); it used Flash and it was great. You didn't have to download the entire file to play it, no need for a dedicated player, etc.
Now Google has replaced it with a Google Drive integration that won't work in my browser / OS, has no native player, requires more clicks, needs 3rd-party apps that won't work too, and requires lots of account access permissions:
Is there a way to get the old player back?