If you say Guardiola will get pressure sack after those streak defeats, it seems like you are wrong because currently Manchester City have extended his contract as coach until 2027, I think, that it will be a big loss if they fired a coach who has able to win a lot of titles for 7 seasons just because of a failure in 1 season.
If the defeat continues and Manchester City still can't get out of the pressure, it is possible that Pep Guardiola will face the problem of being fired and even though Manchester City has currently extended his contract.
We can see how clubs in the Premier League can fire coaches unexpectedly and that's just my assumption based on some experiences that have happened.
The pressure I mean will be fans who try to voice the dismissal that is caused by losing streaks in the next match.
That's just my assumption and indeed we don't expect that to happen because Pep Guardiola has turned Manchester City into an extraordinary club in the midst of such tight competition.