I got the game as a gift in 2014, but at the time I didn't have a good PC to run it.

I linked the account in an e-mail that I no longer have access to.

I removed the game from my Steam library, bought it again, but got the same Key (Steam only offers one key per account); So I had to create another Steam account, buy the game again through it and use the code provided for this account in my FFXIV.

When this new Steam account linkin goes into effect, will I have to use the Base Game Key/ARR, or Endwalker? I don't think they specified. I'm afraid this will give me problems. The kind that makes me lose my 8-year-old account.