Titan Launcher (1.19, 1.18.2) is an offline launcher that circulated among global players, it was available to download for free. Launcher worked great with the latest versions of the game and some of the features like skins were disabled.
Source: Titan Launcher (1.19.2, 1.19.1, 1.19)
Home page: 9minecraft.net
Check for NBT data.
"We live on a placid island of ignorance in the midst of black seas of infinity, and it was not meant that we should voyage far."