How to reproduce:
1. Open the project: “IN-113884_VFXHSL”
2. Enter Play Mode
3. Observe the Game View

Expected result: Two squares show up, both are the same size and light grey
Actual result: Two squares show up, one is bigger than the other and darker grey color

Reproducible with: 6000.0.0b15, 6000.0.59f1, 6000.2.7f1, 6000.3.0b4, 6000.4.0a1
Could not test with: 2023.3.0a8 (System.OutOfRangeException) 6000.0.0b14 (Expression graph was marked as dirty … error)

Reproducible on: Windows 11
Not reproducible on: No other environments tested

Note: Similar setup is suggested in the documentation page under the IsClose() method
https://docs.unity3d.com/Packages/com.unity.visualeffectgraph@16.0/manual/Operator-CustomHLSL.html