You can AirDrop photos as a JPG by manually converting HEIC to JPG or always saving in the JPG format.
You can convert a JFIF file to JPG, though the two formats are nearly identical, and most software will open a JFIF file as a JPG.
But if you use Google Drive, all your photos, videos and other random documents might be eating up the 15GB of free storage Google Drive provides. If you run out of storage, you'll see a message ...