Sancho literally played the same amount of games for Dortmund this year that he would have at City. Him and Foden had pretty much the same year. Multiple SR players ahead of them, injured midseason, practically the same stats
Sancho was playing full 90s tho. Foden played the full 90 in some carabao cup games and I think the throwaway game against shakhtar. Sancho didnt get to finish the WC because of Dortmund while Foden did and helped England finish first.
Who made the best choice? Only time will tell but I think Foden and Brahim should go out on loan somewhere where they can get more minutes.