I think I've found at least 2 bugs possibly related to command branches. Here's repo with the example. It's using Spectre.Console 0.39.0.

• Command options from parent (branch) settings are not taken into account / parsed. In this example PrintBaseSettings.Message. Result is failing ValidateExamles() and when -m MESSAGE is passed as command line argument the value is ignored. Reproduce by uncommenting the line Program.cs:L17
• Dependency injection through type TypeRegistrar & TypeResolver is called for both command type and their settings, not just command constructor dependencies (IFooService for DecoratedPrintCmd in this example). Maybe this is not a bug, but it is at least unexpected and unusual. Reproduce: comment lines Program.cs:L46-47 and Program.cs:L50-51.