Replace Burger menu with a different SVG icon in the Twenty Twenty-Two theme

replace-menu-icon-tt2.php

<?php function custom_render_block_core_navigation (string $block_content, array $block)
{
	if (
		$block['blockName'] === 'core/navigation' && 
		!is_admin() &&
		!wp_is_json_request()
	) {
		return preg_replace('/\<svg width(.*?)\<\/svg\>/', 'add your SVG here', $block_content);
	}

	return $block_content;
}

add_filter('render_block', 'custom_render_block_core_navigation', null, 2); ?>