add @2p annotation and docs

e2e/README.md

@@ -148,6 +148,7 @@ Current list of test tags:
 - `@localStorage` - Captures or generates session storage to manipulate browser state. Useful for excluding in tests which require a persistent backend (i.e. CouchDB).
 - `@snapshot` - Uses Playwright's snapshot functionality to record a copy of the DOM for direct comparison. Must be run inside of the playwright container.
 - `@unstable` - A new test or test which is known to be flaky.
+- `@2p` - Indicates that multiple users are involved, or multiple tabs/pages are used. Useful for testing multi-user interactivity.
 
 ### Continuous Integration
 

e2e/tests/functional/branding.e2e.spec.js

@@ -45,7 +45,7 @@ test.describe('Branding tests', () => {
         await expect.soft(versionInformationLocator).toContainText(/Revision: \b[0-9a-f]{5,40}\b/);
         await expect.soft(versionInformationLocator).toContainText(/Branch: ./);
     });
-    test('Verify Links in About Modal', async ({ page }) => {
+    test('Verify Links in About Modal @2p', async ({ page }) => {
         // Go to baseURL
         await page.goto('./', { waitUntil: 'networkidle' });