For questions relating to the Sitecore Install Assistant introduced in Sitecore 9.2
The Sitecore Install Assistant (SIA) enables users to deploy and configure a Sitecore environment using a graphical user interface (GUI) that executes the Sitecore Installation Framework (SIF) scripts.
It is an alternative installation option for non-technical users who are not familiar with PowerShell.
It is included in the download of the Sitecore 9.2+ installation files.
Useful blogs:
https://tothecore.sk/2019/07/22/installing-sitecore-9-2-using-new-sitecore-install-assistant-sia/