Sporting CP is acting this way because they want a bigger profit, especially since Arsenal is so clearly desperate to sign Gyokeres, and they haven't considered any other options for their signings. So, I'm not surprised this transfer will go through; we just have to wait for the official announcement.
Despite Gyokeres's high price tag, I think Arteta knows which players are suited to his coaching style, which is why Arsenal is so keen on Gyokeres in this transfer window.
Arsenal's main target is Gyokeres. And they do not see any other player as suitable for their squad right now. Arsenal are looking for a player who has the ability to score a lot. and for this , gyokeres is the best choice. Arsenal will not put any young talent in the center of their attack now. They need an experienced player. That is why Arsenal will try their best to add Gyokeres to the squad until the end.
Sporting will undoubtedly try to earn a large amount of money by selling gyokeres. However I am not sure how much Sporting wants for Gyokeres. Gyokeres scored more than 39 goals last season. Arsenal will probably have to spend at least 70 million for such a player