How to download netflix?

If your iPhone is running iOS 15 or later, follow the steps here: ➡️ Download apps and games on your iPhone or iPad - Apple Support

Otherwise, update your iPhone to iOS 15 or later first, by following the steps here: ➡️ Update your iPhone or iPad - Apple Support

Netflix iOS app (available on AppStore) requires that your iPhone is updated to iOS 15 or later (and your iPhoneXS supports also the latest iOS available version, now iOS 16.2).

When done, download that app as usual.

Regards

Giulio