Java MInecraft install Raspberry PI

When attempting to setup Minecraft Java Ed, on raspberry pi. The Launcher loads fine yet, asks for a Mojang account. There is no method to register for a new account, and this launcher does not work with my Microsoft account that has the paid Java Edition.

Please advise on how to rectify this. I have already searched google, and everyone seems to have an old Mojang account, and this install works.