https://ultimmc.com/ FOSS Minecraft launcher. You can play singleplayer and multiplayer on cracked servers

Try johncena141 repacks (recommended) for linux or DODI repacks if the first one did not make a repack for the game yet. Fitgirl repacks have never worked in my experience while DODI's have always worked. For johncena141: https://gitlab.com/jc141x/setup For DODI: just execute the setup.exe with wine and install the game in the folder you prefer.