When to shoot and edit in RAW
When you need a high-quality result, and not the speed of the return of the footage.
If you want to shoot portraits, work with a subject, or learn to shoot interiors, then RAW format is a must such as https://www.artlook.us/service/wedding-proposal-photography/.
When trying to process or retouch an in-camera jpg in Photoshop or Lightroom, you will be working with a file that has already undergone software compression and processing inside the camera.
Compression leads to a decrease in the pixel density in the image, a decrease in the visible number of colors and their variability, and, possibly, compression artifacts or image pixelization when the frame is strongly changed.
Manual conversion in Lightroom or Camera RAW allows you to take pictures more carefully, which leads to the absence of the above problems.
You use a larger dynamic range initially, which allows you to avoid the appearance of defects when editing the picture.
In other words, the software power of Lightroom or Photoshop cannot be pushed into the camera.
More primitive conversion algorithms work inside the camera, tuned to some average result that will suit a hypothetical housewife.
By the way, some professional cameras do not know how to shoot in jpg in principle.
I won’t talk about the fact that with manual conversion you can draw a small masterpiece right in Lightroom or ACR.
An example in the video.
Pretty good training video, I recommend to watch. Don’t be afraid of the English voice acting. Everything is clear and without words.