Disable Site Search
Turns search off: search URLs return a 404 page, the search form is emptied and the classic Search widget is removed.
Snippet Library
Disable Features snippets for WordPress
Snippets that switch off WordPress features you do not use: comments, the block editor, RSS feeds, automatic updates, attachment pages and more. One snippet per feature, so you turn off exactly what you want and nothing else.
Stop WordPress Guessing URLs on 404 Pages
Turns off the automatic redirect WordPress makes when a URL does not exist but looks similar to a post slug, so wrong URLs show a real 404.
Stop WordPress Serving Its Logo as favicon.ico
When no Site Icon is set, WordPress answers /favicon.ico with its own logo. This returns a plain 404 instead, so your tab never shows the WordPress logo.