Regarding to the official Starship install instruction; First we need to download and install the Nerd Fonts
Notes on Font settings in Window Terminal and VS Code application
If some symbols was missing; shown as a regtangle block. We need to download Symbols Nerd Font too.
In VS Code Settings JSON mode:
correct the value of fontFamily like this
"editor.fontFamily": "'CaskaydiaCove Nerd Font Mono','Symbols Nerd Font','Courier New', monospace",
...
"terminal.integrated.fontFamily": "'CaskaydiaCove Nerd Font Mono','Symbols Nerd Font','Cascadia Code PL', monospace",
In Window Terminal:
Profiles > Default > Select your favourites Nerd Font (only one, cannot cascading several fonts)