Odegaard has not been consistent enough to be regarded as some sort of omphalos of this team like Saka or Gabriel.
He was outstanding between August - February in the 22/23 season, but the level of his performances nosedived from March onwards. His form was largely patchy and underwhelming from August - January in the 23/24 season, but he had a very strong end to the season like the rest of the team.
This season, he's been hopeless. There's no other word. He hasn't shown that he can consistently peform at a high level for 30+ games and his output is decreasing each season.
I don't think it'd be wise to look for a replacement though. Striker, CM and winger are all far higher priorities.