The Chelsea loanee once again captured the imagination of Patrick Vieira's new Crystal Palace build, being the go-getter in every essence of Saturday's game.
There wasn't a blade of grass that the 21-year-old didn't touch against Tottenham Hotspur and the Englishman proved yet again why his bundle of energy in the nucleus of Palace's team will be paramount to their season's successes.
Patrick Vieira recapitulated his admiration for Gallagher once again after he watched on at his first victory as a Premier League Manager.
An exquisite team performance was arguably owed much to Gallagher's hard work and tenacity to complete his sides dirty work, progressing the ball with confidence and winning the ball back effectively.
"He loves football", said Patrick Vieira.
"He’s got a lot of energy, and he would play well under any manager because of the passion he has for the game. The energy he is bringing to the team is fantastic."
Setting up the third goal for Odsonne Edouard, the lynchpin new signing has quickly upgraded his reputation in South London, especially after his two goals at the London Stadium secured a 2-2 draw against West Ham United last time out.
The only worry that slips through the cracks at Selhurst Park is the idea of falling in love with another loan signing as memories of Michy Batshauyi's successful first loan spell crop up.
But with the club looking financially healthier than in previous years, there's an inevitable conjecture that the arrival of Conor Gallagher is the start of something much greater.
And a promising sign that the new era is starting to take positive shape is the fact that every goal scored in the weekend's impressive victory involved a new signing - a palpable indication that the summer's substantial spending is starting to pay dividends.
A difficult end to the month
With a trip to Anfield followed quickly by a visit from rivals Brighton and Hove Albion to look forward to in the remainder of September, Vieira will hope that Gallagher can continue to impress in his role as the joint between midfield and attack.
There's very little apprehension over what the new manager's ethos is now, so Palace's new trademark fluidity will unlikely be altered for the next two games, but it will be interesting to see how their system fares against the omnipotent attacking trident of Liverpool.
The good news for the Eagles is that Conor Gallagher and his attacking partners aren't the only players that have shown their effortless potential to play in Vieira's system.
The defensive duo of Joachim Andersen and Marc Guehi look ascendingly competent after every game and keeping out Harry Kane epitomised just that. But not only do the pair boast an eye for defensive detail, but they are also confident ball progressors who fit perfectly into Palace's fluid shape.
Nevertheless, it was Conor Gallagher who performed the role of the unsung hero with grace during Saturday's special occasion, and whether the Eagles can follow up their celebrations with a good result against Liverpool or not, the feeling around the club that something special is happening is becoming more apparent by the week.