Good point, and I'm not sure how to articulate this (which might mean I have some reconsideration to do)... but I feel like I don't need to sweat the details as

Good point, and I'm not sure how to articulate this (which might mean I have some reconsideration to do)... but I feel like I don't need to sweat the details as much on the fallback? Like, if it looks perfect with flexbox and decent-but-not-perfect (but critically, the content is available and readable/accessible) with the fallback, I'm totally ok with that.