I clearly said 'squad'. Also, it's unfair you are comparing Liverpool MFs with Fred and McTominay. Compare Henderson and Keita with Matic and Pogba, which is the best pairing we have, and you get a different picture.
No, Robertson isn't better than Shaw, he is put in the position to seem more valuable because he plays in a better setup under a manager who knows his qualities and deficiencies, i.e. the manager who is not an amateur like Ole.
Varane and Maguire as a pairing is as good, if not better than VVD and Matip/Gomez. Squad-wise, Liverpool's quality mostly ends with their XI. We have Martial, Lingard, Sancho, Greenwood, Bruno, Ronaldo, even Pogba, van de Beek, all in the rotation for the front positions. City don't have as many quality players in the attacking rotation. They are playing a natural RB at LB and while Dias is top class, the other CB is nowhere near consistent or good enough.