I don't notice much difference between experience in Windows 7 and Windows 11, aside from needing to manage more policies to prevent their cloud based services. Windows 11 isn't bad if you disable the adware portion. The terminal app is pretty good now and WSL works, albeit not as pleasant as something more native like Linux or even macOS terminal, but the adware is what cripples it IMO.
Windows 11 adds other features that are useful though. I agree, Windows 10 is sufficient but if you know what policies to use then Windows 11 feels pretty much like Windows 10 with some new features.
batch files are handled by cmd.exe, not by conhost.exe. Cmd.exe in turn opens default console. Similarly for powershell, python, farmanager and other console-based apps.