Microsoft has started rolling out the new Start menu for Windows 11, which we previously did a deep dive preview on. Both versions 24H2 and the newer 25H2 of Windows 11 can use the new Start menu.
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.
You can move pictures to an SD card using a PC, Mac, or Android phone, as long as you have the right card and equipment.