I agree, but I do think injuries have halted their progress a bit as well. Odegaard was injured Match Week 3 last season and was out for a few months and didn't look the same when he came back. This season as well has been stop start for him, think he's only completed 90 mins 3 or 4 times.
Saka a similar story. Think he had something like 5 goals and 11 assists last season before his hamstring injury in December, and had 1 goal and no assists after he came back in April.
Both need a run, injury free to see if they kick on again, but it is a worry, Odegaard especially there seems to be a bit more of a debate around if we should move on from building our attacking setup around him.