Your model however has a high fidelity and DCCs usually support much higher precision for a simple float.
The problem with unreal looking like trash comparatively to any DCC is the precision it can support (which is fairly low and gets truncated as well).
And yes, thats 100% because of optimization - but it is 2025, maybe we can actually step things up so that LOD0 on characters match DCCs a bit closer…
Just not the way its shown above… the problem starts with the import of the data from FBX to engine asset…