They are not exactly pure ray tracying. Being exact the real ray tracying only is present in movies already, but the "gaming" ray tracying is only usefull for GPUs that were designed to be able to run Ray tracting decent good. That's why they decided to call them RTX, it's an important change. So when you test your Java edition with shaders that simulate pretty well ray tracying it looks great as skyrim or GTA V with mods that made them look absolutely realistic, they aren't native ray tracying. Minecraft bedroock edition, the Minecraft RTX use natively Ray tracying. I recommend to check quake RTX for example, you would see if you activate RTX on (if allow you to do it) and check ray tracying. In general shouldn't work or run very slow. This is how when Nvidia implemented Physics for first time, old GPUs when tried to run Physics were working suddenly of for example 60 FPS to 5, 2 FPS... Or the game crashed. There it's the point.