Change email for a Minecraft account migrated from mojang

So does that count as mojang account created to make that minecraft profile, or the account that was migrated with?
If its the latter, again, the account email was changed.

Originally I bought the game with a mojang account (This was back in 2016 I think)

I then changed the email for the mojang account.

then with the migration, I migrated it to my current microsoft account that is not related to any of the previous emails.

The migration was successful and I was able to play game.

I stopped playing for a while, but after trying to log in with the same microsoft account that worked previously, minecraft was not there anymore.

Since I bought it with a mojang account, there is no record of a purchase/transaction.

I am trying to recover my microsoft account that is linked to my minecraft of which have been migrated from mojang. How could i know the email if the hacker has changed it?

you cannot change the email address you used to migrate your Mojang account.

If the Minecraft license is linked to that account, there is no problem by changing your alias/name address, because is already linked

That's normal, you can't access the old Mojang account after the migration, you need to use the email you used to migrate the Mojang account to, in the launcher you need to select Minecraft Java and then Microsoft login and then use the email you use during the migration process