As you can see the option is available for 2017 but not for 2019. I got the prompt to add modules during the installation but it’s not available after the installation finishes.
Checking in to see if you are still experiencing the same prompt. Can you kindly check if the Editor was located manually?
I have the same problem, and yes the Editor was located manually because it was installed directly and was not detected by the Hub.
I had the same problem and I resolved it by installing the editor through Unity hub.