In 2024, developers continue to grapple with persistent browser compatibility issues that affect user experiences across different web browsers. A significant challenge is bridging the gap between legacy browsers like Internet Explorer, which remains in use despite its obsolescence and lack of support for modern features, and newer browsers that frequently update with the latest technologies. Developers face compatibility hurdles with CSS and JavaScript, where inconsistencies in feature support across browsers lead to layout and styling issues, rendering discrepancies, and the need for polyfills, which add extra coding burdens. The slow adoption of new features by some browsers further complicates efforts to implement innovative web design elements. Progressive Web Apps (PWAs) also present challenges due to their reliance on evolving browser support. Despite these frustrations, tools like LambdaTest offer cloud-based solutions for cross-browser testing, helping developers ensure their websites perform consistently across various platforms and devices.