The 24-year-old Australian series leader, who is seeking to become Australia's first world champion since Alan Jones in 1980, had challenged the team's decision during the Monza race.
Speaking to reporters ahead of this weekend's Azerbaijan Grand Prix, he said there had been "good discussions" and the team were now "very aligned" on how to progress in the remaining eight races this year.
"Obviously it's a highly talked-about moment, but we've had a lot of discussions and clarified a lot of things," he said. "We know how we're going to go racing going forwards, which is the most important thing."
He refused to go into details or reveal what the team had discussed in particular.
"A lot that is to stay for us because, ultimately, if we give out that information then we become very easy targets to pick off because everyone knows what we're going to do," he said.
"That's all very aligned with all of us, but it stays in-house."
He added: "The biggest thing for me, from Monza, was it was a weekend where I deserved to finish third. I didn't deserve to finish second because of the pace I had.
"I was quick at certain points, but not quick enough the whole weekend and that's my main takeaway from that, what I'm trying to focus on going forwards."
This weekend the McLaren duo will be fighting for championship points individually, but aware of the need to avoid any scrapes as they are within reach of clinching the team's second consecutive constructors' world title.
Piastri leads Norris, 25, by 31 points with eight races to go, while McLaren head Ferrari by 337 points. McLaren have 617 and Ferrari 280.
"There was another factor, outside the slow pit stop, at Monza," added Piastri. "The order we pitted in. It was a contributing factor to why we swapped.
"That one, I am happy to talk about because it has happened. We can't plan for every scenario, but we are very aligned and I respect the team's decisions and I trust they will do their best to make the right one."
McLaren need to outscore Ferrari by at least nine points to wrap up the teams' crown with seven races to spare, while not being outscored heavily by Mercedes or Red Bull.
If they succeed, it will be the earliest the title has been confirmed in a season.