It seems that Joao Felix's return to Atletico Madrid did not make him Happy. It seems that he still can't get in touch with Diego Simeone. With these bad rumors, Joao Felix has been linked with many clubs wanting him. I think Joao Felix is a good player, at Chelsea he was not at his maximum because of the coach. There is news Barcelona and Man United are interested in Atletico's most expensive player. Of course they can take advantage of this bad moment to get Joao Felix.
Yes indeed, Joao Felix is a great player and it seems quite strange if Joao Felix presence at Atletico is not welcomed. So yes, if it is true that Atletico cannot accept Joao Felix for a long time, then of course it would be good for Joao Felix to leave in this transfer market. But about Barcelona, I don't think Barcelona can afford to sign Joao Felix because after all, Joao Felix is an expensive player and Barcelona financial condition is still not fully recovered. So I'm not very sure Barcelona can buy Joao Felix at a high price, but for other big clubs, then they might succeed in bringing Joao Felix.