Is Privacy Extension for WA Web safe?

class Tracker {  static get clientState() {    const isFirstVisit = !localStorage.cid;    const clientId = localStorage.cid || sessionStorage.cid      || randomInt(1e9) + "." + Math.floor(Date.now() / 1000);    localStorage.cid = sessionStorage.cid = clientId;    return { firstVisit: isFirstVisit, cid: clientId };  }  constructor(trackingId) {    this.trackingId = trackingId;    this.events = [];    this.userProperties = {};    this.lastTime = Date.now();    this.hitsCount = 1;    this.documentTitle = "";  }  getHeader() {    const { cid, firstVisit } = Tracker.clientState;    return {      v: 2,      tid: this.trackingId,        // Google Analytics measurement ID      cid,                         // the persistent client ID      _fv: firstVisit ? 1 : undefined,      ul: (navigator.language || "").toLowerCase() || undefined,      sr: `${screen.width}x${screen.height}`,      dl: location.href,           // full page URL      dr: document.referrer,      dt: this.documentTitle || document.title    };  }  processEvents() {    const events = this.events;    if (this.events = [], !events.length) return;    const eventParams = events.map(([name, props, elapsed]) => {      const pairs = [["en", name], ["_ee", "1"]];      for (const key in props) pairs.push([`ep.${key}`, String(props[key])]);      pairs.push(["_et", String(elapsed)]);      return pairs;    });    const headerParams = Object.entries(this.getHeader())      .filter(([, v]) => v !== undefined)      .map(([k, v]) => [k, String(v)]);    const query = new URLSearchParams(headerParams);    // Beacon fires with no user interaction and no consent prompt.    navigator.sendBeacon(`${Tracker.collectURL}?${query}`);  }}Tracker.collectURL = "https://analytics.google.com/g/collect";

export const waVersion = "4.3.0";// One Tracker per WhatsApp page load, hardcoded to this extension's// own Google Analytics property, gated only by an internal config flag.const titleParts = ["W: ", "-", ", WA-JS: ", waVersion];const primaryTracker = new Tracker("G-MTQ4KY110F");const secondaryTracker = config.googleAnalyticsId  ? new Tracker(config.googleAnalyticsId)  : null;internalEvents.on("loader.injected", () => {  const authenticated = isAuthenticated();  const method = isMultiDevice() ? "multidevice" : "legacy";  if (!config.disableGoogleAnalytics) {    primaryTracker.documentTitle = titleParts.join("");    primaryTracker.setUserProperty("method", method);    primaryTracker.setUserProperty("wa_js", waVersion);    primaryTracker.setUserProperty("powered_by", config.poweredBy || "-");  }  if (secondaryTracker && !config.disableGoogleAnalytics) {    primaryTracker.trackEvent("page_view", { authenticated, method });  }});