CSS Grid - Difference Between flex-start and Start Value in alignment/justifying Properties

Question

I'm a newbie in CSS Grid, after searching in Google, I haven't found what I seek for, I wonder in alignment and justifying properties, what is the difference between flex-start/flex-end and start/end value please?

Answer 1

no difference

flex-start

For items that are not children of a flex container, this value is treated like start.

https://developer.mozilla.org/en-US/docs/Web/CSS/justify-content#values