Hi there
Yes, the email in the image on the website is valid. They suggest using this email to suggest games, so you should contact them using it. As far as I understand, legally, you're the one who can determine which platform the game I'm referring to is allowed to be on GeForce Now. Legally, GeForce Now cannot add a game to their platform without permission from the developer or the person who can decide which platform it's allowed to be on. You have the authority to make that decision since you choose the platform where the game is available, and you also own the game. Therefore, you would be the only person who could give permission to add it to GeForce Now legally, if my understanding is correct.
This is how GeForce Now works: You choose your subscription for GeForce Now, then you go to the app and check if the game you want to play is available on GeForce Now. If it's available on Steam or any other platform supported by GeForce Now, you need to have a Steam account. You link it to GeForce Now, and if the game is free on Steam, you can play it for free on GeForce Now. If the game costs money on Steam, you buy it on Steam, have it in your Steam library, and then go back to GeForce Now. If your Steam account is correctly connected to GeForce Now, you can click on the game, then click on Steam at the top, and then click play to start playing the game.
So, I think you should use the email provided in the picture to tell them that you allow them to have Sims 4 on GeForce Now. You can discuss all the other details about the game with them through the email I provided. By doing this, you would likely reduce the use of random websites that claim to have Sims 4 for iOS, preventing people from downloading potentially unsafe versions of the game. If you care about your community or want to fulfill their requests, please consider taking this action.