Question regarding additional EA keys

It writes that the "+1 Path of Exile 2 Early Access Key" can be redeemed on the Path of Exile website.

So my question, is it possible to play the game via Steam once it's activated on the POE site or only via standalone launcher?

Or can the key also be activated on Steam directly?

Thanks a lot.

I do believe! If not I can check for you no worry just send it in dm :3

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FlamesAtHome#9430 wrote:

I do believe! If not I can check for you no worry just send it in dm :3

Sadly already gone, asking for a friend. :)

Anyone a idea here?