Contrary to the above, I’d advise you to shoot as close to your final image as possible. The 8-bit codec is ok but it doesn’t stand up to heavy grading. Playing around with flat styles, pseudo-log styles, etc just made my life difficult and created extra work I really didn’t need to be doing.
That’s not to say I don’t use custom styles in my Canon DSLRs but just not anything that’s trying to make the camera something it’s not. I use, and love, the custom styles available from https://www.vision-color.com, along with the “Prolost” picture style for when I’m working with extra cameras that don’t have custom styles loaded.