TwitchApp * uses the Vanilla launcher to run and download minecraft and only manages the mods. Vanilla launcher downloads its own Java version (out dated) to use for you inside the .

If you want to download Java 64-bit or 32-bit on your Windows 11 or Windows 10 computer then follow the method mentioned here.

Download the latest 32-bit or 64-bit version of Java for Windows 10 to develop and run programs written in this language effortlessly.

Most Minecraft players need not worry because, at this point, a 64-bit operating system is standard, especially for Windows and MacOS users.