Why is no other team looking at him?
If he was really that decent, European clubs would be after him if he is available?
They all seem to find money when they want a player.
Not many clubs could afford his fee+wage, there are only a few:
Real Madrid - they are overloaded with top class midfielders already, they don’t need him
PSG - Perhaps having renew Mbappe mega contract, they may not be able to get away with the rules with another big signing? They also have Varatti to play similar role
City - They already have plenty of good baller/playmaker in midfield, all they need is a backup ball winner for Rodri, and to replace Fernandinho
Liverpool - Doesn’t seem what they need. Plus they already spend 100m euros in Nunez, and they already have Thiago, Fabinho, Henderson
Chelsea - Doesn’t seem fit their style of play. Plus they already have Jorginho, Kante, Mount, Kovacic, there is no immediate need for him
Bayern - They have Kimmich and Goretaka, don’t think he will be their priority. Plus they will need to find replacement (Mane?) for Lewandowski. However, I could see they might do a swap move with Lewandowski and FDJ, given that if Bayern is willing to spend big on him (which I doubt)
Juventus - They will get Pogba instead