As part of stabilizing tests for Ubuntu 24.04 it is identified that RestoreSceneSizeTest, PageFillTest fails on same platform. This behaviour is seen in both Wayland and Xorg in Ubuntu 24.04.

RestoreSceneSizeTest > testUnfullscreenSize() FAILED
    org.opentest4j.AssertionFailedError: Scene got wrong height ==> expected: <255.0> but was: <218.0>
        at app//org.junit.jupiter.api.AssertionFailureBuilder.build(AssertionFailureBuilder.java:151)
        at app//org.junit.jupiter.api.AssertionFailureBuilder.buildAndThrow(AssertionFailureBuilder.java:132)
        at app//org.junit.jupiter.api.AssertEquals.failNotEqual(AssertEquals.java:197)
        at app//org.junit.jupiter.api.AssertEquals.assertEquals(AssertEquals.java:86)
        at app//org.junit.jupiter.api.Assertions.assertEquals(Assertions.java:1024)
        at app//test.javafx.scene.RestoreSceneSizeTest.testUnfullscreenSize(RestoreSceneSizeTest.java:123)

PageFillTest > testPageFillRendering() FAILED
    org.opentest4j.AssertionFailedError: Color 5 should not be: not expected:rgba(0,255,0,255) but was:rgba(0,255,0,255)
        at app//org.junit.jupiter.api.AssertionUtils.fail(AssertionUtils.java:38)
        at app//org.junit.jupiter.api.Assertions.fail(Assertions.java:138)
        at app//test.javafx.scene.web.PageFillTest.assertColorNotEquals(PageFillTest.java:91)
        at app//test.javafx.scene.web.PageFillTest.lambda$testPageFillRendering$4(PageFillTest.java:172)

Product issue for RestoreSceneSizeTest : JDK-8353556
Product issue for PageFillTest : JDK-8353561
Until product issues are fixed, we need to skip these tests.