The Selenium `Element is not clickable at point` exception occurs when a WebElement is not clickable due to various reasons such as overlapping elements, disabled state, or failure in locating the element using coordinates on the page. The causes of this exception include the use of Chrome browser where Chrome never calculates the exact location of any WebElement, and other browsers have different implementations. To fix this exception, one can add waits to Selenium tests, maximize the browser window, use JavaScriptExecutor for performing mouse clicks, or use the Actions class in Selenium to switch to the specific element and perform the click operation. Additionally, a cloud-based Selenium Grid like LambdaTest provides cross-browser testing on all major browsers and 3000+ operating systems online, which can help expedite test execution and product release via integration with popular CI/CD tools.