I find that hard to believe considering Arsenal were knocked out of the Cup early. We went quite far in both Cup competitions as well as suffered more injuries than either City or Arsenal.
You can look at the numbers if you like. Each team's top 10 most featured players:
Saliba 3962, Gabriel 3822, Rice 3734, White 3565, Odegaard 3514, Saka 3435, Havertz 3304, Raya 3180, Martinelli 2454, Zinchenko 2031 - AVERAGE 3,300
Foden 3680, Rodri 3618, Dias 3503, Walker 3396, Ederson 3334, Haaland 3283, Akanji 3206, Alvarez 3162, Silva 3099, Gvrdiol 1849 - AVERAGE 3,213
Virgil 3532, Diaz 3148, Mcca 3069, Gomez, 2988, Nunez 2860, Salah 2743, Dom 2604, Gakpo 2594, Konate 2524, Kelleher 2400 - AVERAGE 2,846
Caveat: club football only.