Ricciardo's three-year McLaren contract was ended one year early last winter after the Australian struggled to get on with the team's F1 cars.
In the difficult-to-handle McLaren, Ricciardo was consistently behind team-mate Lando Norris during his two seasons in Woking, despite taking a shock win at the 2021 Italian Grand Prix.
Ricciardo was then snapped up by Red Bull as a third driver during his sabbatical until he was loaned out to sister team AlphaTauri ahead of the Hungarian Grand Prix as an early replacement for Nyck de Vries.
Ricciardo impressed on his first outings with the tricky AT04 and while he still needs to fully adapt to the car, he vowed never to go to the level of detail that he went through at McLaren.
His efforts to change his driving style at McLaren made him "unrecognisable" on his Red Bull simulator return according to team boss Christian Horner, with Ricciardo having to rebuild his confidence in subsequent runs and a convincing Silverstone tyre test.
When asked if Ricciardo had to dig as deep as he did at McLaren to get up to speed in the AlphaTauri, Ricciardo replied: "I don't want to get into that detail ever again.
"I think even through year one at McLaren, at the summer break I learned we were probably going into too much. We needed to change the approach a little bit.
Source: Autosport