After getting annoyed with searches I didn't want showing up on my Google page, especially for video searches, my web browser redirected me to TikTok. That platform is totally useless and shouldn't even be linked with Google. I'm sharing the script below that will help you block sites as well."

// ==UserScript==
// @name Google Search Filter
// @namespace http://tampermonkey.net/
// @version 0.1
// @description Filter out specified sites from Google search results
// @author Your Name
// @match https://www.google.com/search*
// @grant none
// ==/UserScript==

(function() {
'use strict';

const blockedSites = ['example.com', 'anotherexample.com']; // Add the sites you want to block here

const observer = new MutationObserver((mutations) => {
mutations.forEach((mutation) => {
if (mutation.addedNodes && mutation.addedNodes.length > 0) {
blockedSites.forEach(site => {
const results = document.querySelectorAll(`a[href*="${site}"]`);
results.forEach(result => {
const parent = result.closest('.g'); // Google results container
if (parent) {
parent.style.display = 'none';
}
});
});
}
});
});

observer.observe(document.body, { childList: true, subtree: true });

// Initial execution for already loaded content
blockedSites.forEach(site => {
const results = document.querySelectorAll(`a[href*="${site}"]`);
results.forEach(result => {
const parent = result.closest('.g'); // Google results container
if (parent) {
parent.style.display = 'none';
}
});
});
})();

Does exactly what it's supposed to do.

Stops working on YouTube sometimes (not sure if this is the only site), but works again after disabling/reenabling.