Depends how they prepare during pre-season.
Man City, under pep, tend to start the season a bit undercooked, and play their way into the season (as Forest did under Clough). Which sharpens them up as they play games, and allows them (along with their big squad) to hold their form for longer (and be in the best possible shape and form at the pointy end of the season).
Other teams aim to go hard and go early.
Most teams will have some disruption (new players) and some uncertainty (how do they pan out), and need a bit of time to get in rhythm and playing together.
Teams haven't had time to look at what other teams are doing, and how to combat (or exploit) that.
So there are many variables and more uncertainty at the start of the season. There is probably more opportunity to accumulate points above par (or lose them), before the 'better' teams 'find out' the 'lesser' teams.
You might have a chance to catch out some of the better teams, if you catch them early...but they are better than you, and if you lose against them all early you might have a negative feeling that you are going to be kicked around all season.
As with so much it really depends on your belief, form, and ability, in the moment...and it's best to focus on that. One game at a time.