I have a driver hook where the WebDriver is set up. I want to run tests in parallel, but currently, only one browser is opened and all test activities run in that same browser, causing my test cases to fail.

Testng file :

driver hook class
public class DriverHooks {

private static final String homeDirPath = System.getProperty("user.dir");

public static ThreadLocal<WebDriver> webdriver = new ThreadLocal<>();

public static WebDriver getDriver() {
    if (webdriver.get() == null) {
        createLocalDriver();
    }
    return webdriver.get();
}

public static void setupDriver() {
    if (webdriver.get() == null) {
        createLocalDriver();
    }
}

private static void createLocalDriver() {
    try {
        quitDriver();
        if (webdriver.get() == null) {
            String downloadFilepath = homeDirPath + FileGetParams.paramLookUp("downloadsPath");
            LogAndErrorHandler.Instance().LogInfo(downloadFilepath);
            switch (FileGetParams.paramLookUp("BROWSER").toUpperCase()) {
              
                case "EDGE":
                case "CHROME":
                    ChromeOptions chromeOptions = new ChromeOptions();
                    chromeOptions.setExperimentalOption("prefs",
                            new HashMap<String, Object>() {{
                                put("permissions.default.camera", 1);
                            }}
                    );
                    if (System.getenv("WINDOW_SIZE") != null)
                        chromeOptions.addArguments(System.getenv("WINDOW_SIZE"));
                    else chromeOptions.addArguments("--start-maximized");
                    WebDriverManager.chromedriver().setup();
                    try {
                        webdriver.set(new ChromeDriver(chromeOptions));
                    } catch (Exception e) {
                        System.out.println(e.getMessage());
                    }
                    break;
            }
            if (webdriver.get() != null) {
                webdriver.get().manage().deleteAllCookies();
            }
        }
    } catch (Exception e) {
        LogAndErrorHandler.Instance().LogError(e.getMessage());
    }
}

public static void quitDriver() {
    if (webdriver.get() != null) {
        webdriver.get().quit();
        webdriver.remove();
    }
}