The Windows Snipping Tool is the most direct way to capture a screen area and save it specifically in JPG format.
To develop a comprehensive guide for capturing and saving screenshots—specifically targeting a for files like "Screenshot 20221018 163646.jpg"—you can use standard system tools or specialized software. Method 1: Windows Snipping Tool (Best for JPG)
If you are working on a phone, screenshots are typically saved as PNG by default, but you can export them.