problem: unable to load static path of .css, .js, image files with codeigniter4

No. the default public/.htaccess should work in most cases.

But the error "Can't find a route for 'GET: templates/style.css'." is a CI4's error message.
"templates/style.css" is a file, so it should be served by Apache, but Apache passed the request to CI4.
So something wrong with your Apache configuration.

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