Hamilton will leave Mercedes at the end of the season to join rival team Ferrari, who claimed pole position with Charles Leclerc in Monaco.
The seven-time world champion has recently been shut out of important meetings concerning Mercedes' development, particularly for their 2026 car when the next regulations are enforced.
After qualifying in Monaco, Hamilton cryptically hinted that favouritism at Mercedes may also be impacting his performance this season.
“Yesterday was really strong, as soon as we started qualifying, it’s like, I don’t know if it’s a turn down or something but performance comes away from my car for some reason, so it’s frustrating that we’re seventh,” Hamilton said to the media, including GPFans.
“I’ve been driving the same through yesterday and today and the car was performing pretty well, the small difference between the two cars is that George has the upgraded front wing so that created a performance difference, particularly in the high speed but for some reason as we got to qualifying, I had no more.