It's the official launcher, but it's not up to date with the website. You are better of downloading it from the minecraft website.
Bei mir Läuft alles super! Minecraft Auf Linux Mint! Super Genial
Official launcher from minecraft.net. Premium required. Working without errors
It works fine. Need to buy the game.
A great package, nice to see strong ongoing Linux support in spite of the acquisition by Microsoft.
It works well, although my PC is low resource I have not had any problems
This is the official package from minecraft.net.