Ake had a disrupted first season with injuries, but in between his injuries Pep showed great trust in him, he played regularly against all level of teams in the PL. Take a look at his data in the link.
This is the performance data of Nathan Aké of Manchester City. It shows the data (goals, bookings, etc.) at {vereinsZuweisung} in the 20/21 season.
www.transfermarkt.co.uk
Pep just doesn't really seem to trust Nunes with regular game time. The only 3 90 minutes games he's played for us are 3 home games to Luton, Burnley and Forest.
These are the detailed performance data of Manchester City player Matheus Nunes. The website contains a statistic about the performance data of the player.
www.transfermarkt.co.uk