Waiting for the exact text that takes at least 2 lines on the UI to be present

Question

The following method works if that text takes only one line:

public void screen_heading_should_be(String scrheading) {
        Wait<WebDriver> fluentWait = new FluentWait<WebDriver>(ldriver)
                .withTimeout(Duration.ofSeconds(10))
                .pollingEvery(Duration.ofSeconds(1));
        fluentWait.until(ExpectedConditions.textToBe(AppiumBy.id("screen_heading"), scrheading));
    }

How do you wait for the exact text that takes two (or more) lines on the UI?

The text I'm waiting for:
"Please set your course
preferences to proceed."

scrheading is the one-line string ("Please set your course preferences to proceed.") that's present in my Step Definitions' Gherkin step (Cucumber), so, it has to be a user-friendly one-line string. Plus, texts in my app can even be on three and more lines, depending on the phone device's screen size/resolution (mobile UI automation).

I was thinking about applying this: screen_heading.getText().replaceAll("\\r\\n|\\r|\\n", " "), but it's a string which is not accepted by the 'ExpectedConditions' from above. 'By' is required instead.