Question: There are no filters on Homepage. What do I do?

That's correct.
Normally filters appear only in categories when there are actual products to filter.
But you may insist on showing filters on any page you want. Specify at ChP's back-end the Product Type ID filters of which you wish to show. After that just select the pages you want the module to display on.

In some cases you may want to have all filters listed on Home page, but when visit category you want filters to filter only within current category.
You can achieve this by creating another copy of ChP module via Joomla Module Manger:

and make one of them stay on Home page with specific Product Type ID, and another to be a regular module.

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