Never had that issue on Vanadium browser, or Brave or even Firefox. I personally refuse to download an app if there is a website for the same. For a long time I was even using door dash in browser.
Why use a website at all, then? United has a reservations 800 number and you can print your boarding pass at the airport.
Why use a website at all, then? United has a reservations 800 number and you can print your boarding pass at the airport.