The name is OpenLara (https://github.com/XProger/OpenLara ) and you can try out the WebGL build directly on your web browser on: http://xproger.info/projects/OpenLara/ . The web version works amazingly well on my Pixel 7a with touch controls (you have to click on the “go fullscreen” button) using Firefox as a browser.
That was true with old days of Flash and Java Applets. There’s not much that can be done with WebGL and canvas APIs unless there’s a vulnerability with a specific browser version on a specific Intel or AMD hardware, which in this case is unlikely given the code is open source.