Yes, GS loading has changed to be more consistent with the rest of the engine. see updated documentation. I’m working on preserving back compatibility.
https://doc.babylonjs.com/features/featuresDeepDive/mesh/gaussianSplatting
EDIT: This PR will bring back back compatibility but note these loading methods are now deprecated. GSplat consistency by CedricGuillemet · Pull Request #15515 · BabylonJS/Babylon.js · GitHub