There's three types: Minecraft account: pre-2015-ish, you sign in with a username and password. I believe these still work until the deadline in this post. Mo

There's three types: Minecraft account: pre-2015-ish, you sign in with a username and password. I believe these still work until the deadline in this post. Mojang account: 2015-2019, you sign in with an email and password. You could migrate a Minecraft account to this. Goes away in the deadline in this post. Microsoft account: 2020+, you sign in with an email and password in a microsoft branded web view. You could migrate a Mojang account to it, but I think Minecraft accounts are a two step migration.