In iOS 14 using Spotlight seems to work well:
		private func open(_ urlString: String) {
				XCUIDevice.shared.press(.home)
				XCUIApplication(bundleIdentifier: "com.apple.springboard").swipeDown()
				let spotlight = XCUIApplication(bundleIdentifier: "com.apple.Spotlight")
				spotlight.textFields["SpotlightSearchField"].typeText(urlString)
				spotlight.buttons["go"].tap()
		}
ldstreet
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I am having this exact issue as well. Switching products also works (monthly to annual or vice versa). Has any verified if this behavior happens in production or is it TestFlight specific?