This seems similar to an issue I posted a while back, but not exactly the same.
Whether in the interface or in the implementing class, the Call Hierarchy no longer shows overloaded methods. It only shows calls for the single selected signature. I'm pretty sure this used to work. Is there a setting for Call Hierarchy separate from Find Usages that I'm missing?
Find/Show Usages still shows overloaded methods.
IntelliJ IDEA 2022.3.3 (Ultimate Edition)
Build #IU-223.8836.41, built on March 9, 2023
Runtime version: 17.0.6+1-b653.34 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Windows 11 10.0
Builder Generator (1.3.0)
String Manipulation (9.7.1)