We'll create fresh WordPress site with WooCommerce Filter Search installed. You have 20 minutes to test the plugin after that site we'll be deleted.
Change the search query behaviour searching only in the post/product title. You can add post types to the not allowed list using this code.
By default the unallowed post types are product and shop_webhook.
NOTE: This plugin will always search for products, but the keyword will be compared only with the product title.
Just activate the plugin.