PollyMC is an open source fork of Prism Launcher which is a Minecraft launcher that has many facilities unlike the official Minecraft launcher, like installing mods directly from the launcher and adjusting instances easily, and can even enable feral mode and mangohud.

PollyMC introduces "offline profiles" that allow you to play without having to log in with a Microsoft account.

Personally, I have been using it for a long time and it has always worked perfectly for me, it is also always updated when there is a new version of Prism Launcher, and with AppImageLauncher I can add it to the applications menu and be able to access it easily.

I have no association with the development of this launcher, but I had found it a long time ago on Reddit in a post about cracked launchers for Minecraft on Linux, and I found it interesting to mention it here.