settings.json

{
    // Easier to go through VsDevCmd than to hack PATH
    "terminal.integrated.shell.windows": "cmd.exe",
    "terminal.integrated.env.windows": {
        "VsDevCmd": "\"C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Community\\VC\\Auxiliary\\Build\\vcvars64.bat\""
    },
    "terminal.integrated.shellArgs.windows": [
        "/k",
        "%VsDevCmd%",
        "&&",
        // CMD _sucks_, drop into PS immediately
        "powershell.exe"
    ],
}