Remove SVG FIlter

It’s a known issue right now for the block editor, and it will be fixed in the future release.

https://github.com/WordPress/gutenberg/issues/38299

There’s a workaround. If you are not using the block editor, you can add this code to your theme’s functions.php

add_action('after_setup_theme', function () {
	remove_action('wp_enqueue_scripts', 'wp_enqueue_global_styles');
	remove_action('wp_footer', 'wp_enqueue_global_styles', 1);
}, 10, 0);

However, if you use the block editor, the workaround above can break some of your page’s styling. If that happens, I suggest using this code instead (in your theme’s functions.php).

add_action('wp_footer',function() {
        global $wp_filter;

        if(empty($wp_filter['wp_footer'][10])) return;

        foreach($wp_filter['wp_footer'][10] as $hook) {
                if(!is_object($hook['function']) || get_class($hook['function']) !== 'Closure') continue;

                $static=(new ReflectionFunction($hook['function']))->getStaticVariables();

                if(empty($static['svg'])) continue;

                if(!str_starts_with($static['svg'],'<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 0 0" ')) continue;

                remove_action('wp_footer',$hook['function'],10);
        }
},9);

That workaround works! Removes both default inline css and the filters from the footer.

Not sure why all that garbage is included by default anyway, should be added by a theme imho.