How to complete mandatory migration in Minecraft Java Edition

Today is the final day for Minecraft players to migrate their accounts to Microsoft. Mojang has been asking players to migrate their accounts to Microsoft for a long time and today is the deadline.

Minecraft will require a Microsoft account to play in 2021 - The Verge

I migrated Minecraft to the wrong Microsoft account, followed the FAQ - Microsoft Community

Mojang Studios begins its mandatory Microsoft Account requirement for Minecraft: Java Edition

Minecraft 1.18.2 on the Raspberry Pi 4, ODroid N2+, and PineBook Pro

Minecraft account migration issue - Microsoft Community

Can't login to my Mojang account · Issue #593 · gorilla-devs/GDLauncher · GitHub

Minecraft is FORCING Migration (lost usernames, eternal sadness)

This is an actual OG account. I think it might give you the red cape. If you have less than that I will cancel order. Too many fake profiles and bots

MINECRAFT JAVA EDITION (PC) (Need A Microsoft email account to migrate it)

Minecraft Migration Cape bug

Mojang to Microsoft migration error. What do I do? : r/Minecraft