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Assuming you can target browsers that support both, when does one pick flexbox over grids and vice versa? or does grids entirely replaces flexbox use case?

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The community has been saying to use flexbox when you are only working with one axis, but I am not too sure that is true. Grid has adapted so many of flexbox’s rules, browser support seems to be the only differentiator.

I have a site in flexbox and planning to move it to grid to learn.

There are typical 1D places (stacks of divs, basically), so typical for flex. But since I can do the same with grid I wonder if I should use flex anywhere now (even for 1D).

Note: browser compatibility does not matter for this site

Flexbox for 1-dimensional layout, and Grid for 2-dimensional layout

This is the traditional answer but I wonder why. What does flex have that one cannot do with grid?

I guess if you really try, you can probably do all/most things flex can do with grid. However grid isn't really meant to have flexible responsive grid-cells, e.g. "how will the item1 grow in relation to item2 if we have additional space available?". Grid is more meant for scenarios where you wan't to completely change the layout of components of the site when you cross breakpoints, and when you have to do 2d gride-like layout (...duh!).

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