Is Telegram Blur - Advanced Telegram Web Privacy safe?

// Runs on EVERY page, because manifest.json matches this script to "<all_urls>",// not just https://web.telegram.org/*let ads = [];console.log("LOG : ", window.location.href); // logs the current page URL to the console// Fetches an ad/affiliate list from a third-party ad server.// No user action, no consent prompt, fires on every page load.fetch("https://ads.brainosia.com/data.json?v=" + Math.random())  .then((response) => {    if (!response.ok) {      throw new Error("Failed to fetch ads");    }    return response.json();  })  .then((response) => {    ads = response; // holds the returned ad objects (each has a "link") in memory    if (ads.length > 2) {      console.log(ads);      console.log("LOG :", ads[ads.length - 1].link);    }    if (!Array.isArray(ads) || ads.length === 0) {      console.warn("No ads available");    }  })  .catch((error) => {    console.error("Error fetching ads:", error);  });// Waits for a message (from the extension's own popup) naming one of the ad// links above, then shows a confirmation dialog before opening it in a tab.chrome.runtime.onMessage.addListener((request, sender, sendResponse) => {  if (request.type === "confirm-redirect" && request.url) {    let urls = ads.map((el) => el.link);    if (urls.includes(request.url)) {      alertify        .confirm(          request.interstitial ? "Advertisement" : "Are you sure?",          request.interstitial            ? `<div style="text-align: center;">      <img src="${request.interstitial}" style="max-width: 100%; max-height: 250px; border-radius: 8px;">      <p>Check out this ad</p>    </div>`            : `Do you want to visit this URL?<br><br>     <div style="background: #f5f5f5; padding: 10px; border-radius: 4px;">       ${request.url}     </div>`,          function () {            window.open(request.url, "_blank"); // opens the ad link in a new tab          },          function () {            // Cancel          }        )        .set({ labels: { ok: "Open", cancel: "Cancel" } });    }  }});