Another commenter complained about short aliases not being safe cross-platform, and this is an example. In powershell core on Unix systems 'ls' is the 'ls' comm

Another commenter complained about short aliases not being safe cross-platform, and this is an example. In powershell core on Unix systems 'ls' is the 'ls' command, not an alias for Get-ChildItem. So I would say the correct "long" version for your example is 'Get-ChildItem -Recurse -Filter .csproj'. In my opinion this is a non-issue (at least when comparing powershell to other shells) because the number of cases where you have to worry about bash command 'X' actually being different from your system (even across varieties of Unix-y OSes) is much greater than this handful of convenience aliases in powershell.