I can't sell Klopp letting him go, he seemed very keen to bring him him.
I would like to see him have a good run in the team, he has been unlucky with injuries/Covid, plus the team has had bad injuries runs since he's joined during Covid, so he has not had many regular partners in MF, which with his style of play would be critical to him on movement/positioning/passing.
I cannot see Barca being able to offer a decent fee for him anyways, his wages would also be high for them, they struggled in the summer to register players due to wages, which is why Messi had to go eventually.