Try Mineclone 2. It's an open-source libre Minecraft clone which runs on top of the Minetest voxel engine and has 99% (almost) feature parity with MC 1.12, can be expanded with hundreds of mods and it runs natively in Linux. You'll be surprised at how polished it is already. In fact, it's so similar to the original Minecraft 1.12 in both gameplay and appearance that it surprises me that Microsoft/Mojang hasn't threat…
It is claimed that MultiMC will not work unless you have authenticated it with active Microsoft account at least once on a computer, even if you only want to use it in offline mode: https://github.com/MultiMC/Launcher/issues/4433#issuecomment... This is probably related to the fact that MultiMC dev allegedly works for MS now. So even if you paid your hard-earned $30 for Minecraft back in the day, now you apparently a…
>Microsoft mines phone numbers
This seems to be more or less standard practice now. Happened to me with several companies. They let you sign up with just an email address, then after a few days or weeks they block your account because of "suspicious activity" and ask for a phone number. Very annoying.