How do you package a simple video game to become a playable online web platform?

I am interesting in packaging and creating a web platform for a simple videogame/walkthrough simulation in unreal. Is there a guidebook/tutorial that can help me through this? is there a type of developer that would know how to do this?

From this: HTML5 Game Development | Unreal Engine 4.27 Documentation

As of Unreal Engine 4.24, support for the HTML5 platform has been migrated out of the engine to a public Platform Extension that can be maintained and improved by community members. Documentation for the HTML5 Platform Extension is hosted alongside the GitHub repository.

You generally don’t want to do this unless you are an experienced programmer. There are other engines that you could use for web platform games.