Open Windows Terminal JSON settings. Next, in profiles
array find the object for the shell you're searching and copy the guid
value from it. The last step is to paste this value into the globals > defaultProfile
nodeattribute.
{
"globals" "$schema":
{
"alwaysShowTabs" "https: true//aka.ms/terminal-profiles-schema",
"defaultProfile" : "{CMD GUID GOES HERE0caa0dad-35be-5f56-a8ff-afceeeaa6101}",
"initialCols" : 120,
"initialRows" : 30,
"keybindings" :
....
It may change your default shell.