Hello, @LambdaSP,
To add the product filters in your store simply navigate to the Dashboard >> Appearance >> Widgets >> Then add the product filters in the “Shop Sidebar” or “Shop filters” and then check back to your site after clearing the browser cache. See the image: https://postimg.cc/vDBHm6Nv
The filter will appear on the shop page also, set by using our theme widgets as you can see in the image: https://postimg.cc/3ySDmr9K
and https://ibb.co/YDvPMSg
Regards 8Themes Team.