Reproduction steps:
1. Open the attached project "ReproProj"
2. In Project window search for “Baker“
3. Open “Baker.cs“ in IDE
4. Find exact line “public void SetComponentEnabled<T>(Entity entity, bool enabled) where T : struct, IEnableableComponent“
5. Note that it contains “struct“
6. In Project window search for “EntityCommandBuffer“
7. Open “EntityCommandBuffer.cs“ in IDE
8. Find exact line “public static void SetComponentEnabled<T>(this EntityCommandBuffer ecb, Entity e, bool value) where T : class, IEnableableComponent, new()“
9. Observe it

Expected result: struct exists instead of class
Actual result: class is present

Reproducible with: 6000.0.68f1, 6000.3.10f1, 6000.4.0b10, 6000.5.0a7

Testing environment: Windows 10 Enterprise 21H2
Not reproducible on: No other environment tested

Note:
- One indicates that the function can work on managed components while the other indicates the opposite