Reproduction steps:
1. Open the attached "repro_IN-36580Breakpoints.zip" project
2. Open "Assets/Scenes/Main" Scene
3. Open scripts "Packages/Package Test/EmbeddedPackageBreakpoint.cs" and "Assets/Scripts/AssetFolderBreakpoint.cs" in Visual Studio 2022
4. Set breakpoints in line 13 of "Packages/Package Test/EmbeddedPackageBreakpoint.cs" and line 10 of "Assets/Scripts/AssetFolderBreakpoint.cs"
5. In Visual Studio press the "Attach to Unity" button
6. Enter Play mode in Unity
7. In Visual Studio press the "Continue" button and observe the breakpoints

Expected result: The script stops at the breakpoint in line 13 of the file "EmbeddedPackageBreakpoint.cs" and in line 10 of the file “AssetFolderBreakpoint.cs”
Actual result: The script stops only in line 10 of the file “AssetFolderBreakpoint.cs”

Reproducible with: 2022.2.1f1, 2022.2.13f1, 2023.1.0b10, 2023.2.0a9
Not reproducible with: 2020.3.47f1, 2021.3.22f1, 2022.2.0f1

Reproducible on: Windows 10

Reproducible with code editors: Visual Studio Community 2022 17.5.1, Visual Studio Community 2019 16.11.25
Not reproducible with code editors: Rider 2022.3.2