No, Inter is still want to keep Lukaku, but they just want don't want to spend huge money to sign him. It's all depend on Lukaku decision whether he want to join Inter or Juventus, Juventus have offer better monthly salary and higher bid for Chelsea. I think the reason is Juventus don't have any other good striker except Vlahovic, so Lukaku can be a substitute player. There's a rumor where Vlahovic will join PSG or Arsenal, so that's why they're looking for a new striker.
I don't think Inter Milan still has an interest in signing Lukaku again. He infuriated the management of the club when he stopped communicating with them because he was having a secret deal with Juventus. There are reports that Inter has informed Chelsea that they are no longer interested to sign the Belgian attacker. Inter was doing everything possible to get him including trying to sell André Onana to fund Lukaku's transfer fee. Lukaku's only option for this season is Juventus. And it will be a big disappointment and betrayal if Juventus fail to sign Lukaku because he has sacrificed so much for them. Vlahovic has been a major target for many big clubs in Europe and Lukaku will be praying for him to make a move before the transfer window ends.