Anaconda Powershell Install Not Launching Jupyter Notebook

PS script to download and extract anaconda:

$uri = "https://repo.anaconda.com/archive/Anaconda3-2020.11-Windows-x86_64.exe"
$outFile = "C:\Users\shan.lodh\Downloads\anaconda.exe"
Invoke-WebRequest -Uri $uri -OutFile $outFile 
Start-Process -FilePath $outFile -Wait -PassThru -ArgumentList '/S', '/v','/qn', `
   '/InstallationType=AllUsers', '/AddToPath=1', '/RegisterPython=1', '/D=C:\Users\shan.lodh\anaconda'

Above works fine (takes a while though) and the following confirms conda and python have been installed:

> conda activate base (#let's not worry about running in base here) 
> python
Python 3.8.5 ... 

However if I try:

> conda activate base
> jupyter notebook

Nothing happens, but checking port 8888 against PID shows python.exe is running at this port (as it should be) but the notebook is not being rendered. Any suggestions? Thanks

edit: same happens using anaconda cmd or PS clients