What problem does this solve or what need does it fill?

Utility crates are messy and hard to maintain. See #11478 for more rationale. FloatOrd (see e.g. #12711) has a natural home in bevy_math, with our other mathematical primitives.

What solution would you like?

Move FloatOrd there.

What alternative(s) have you considered?

We could also split this out into its own micro-crate.