Make sure you're using Google Chrome browser

Tap the three dots (⋮) in the top-right corner

Select "Add to Home screen" or "Install app"

Tap "Install" or "Add" to confirm

Make sure you're using Safari browser (not Chrome)

Tap the Share icon (📤) at the bottom of Safari

Scroll down and tap "Add to Home Screen"

Tap "Add" in the top-right corner