If you haven't claimed the full game, Premium members can download a 1-hour full game trial to test it before buying. Official Store Links
While is not permanently free, you can download and play it at no extra cost through several legal digital services. Most notably, the Epic Games Store recently offered it as a free "keep forever" title for PC. Free Access via Subscription Services LEGO Star Wars: The Skywalker Saga Download Fre...
The standard edition is available for download on Xbox Series X|S , Xbox One , and PC for all active subscribers. If you haven't claimed the full game, Premium
You can find the game on these primary platforms. While they often feature steep discounts (sometimes up to 80% off), the standard prices are listed for reference: LEGO Star Wars: The Skywalker Saga Download Fre...