Reichner was 21 years old whe he was cast as Logan Hall in Steven Spielberg's semi-autobiographical film The Fabelmans' in June 2021. This was the actor's first gig as a professional actor. The character is based on a student who levied anti-Semitic bullying towards Spielberg during his high school years in real life.[4][5][6] Rechner auditioned remotely during the COVID-19 pandemic via a zoom interview with Spielberg. In order to leave Australia at the time he had to apply for special exemption, and this only came through the day before he was flying to the United States to work on the film.[7] It premiered at the Toronto International Film Festival on September 10, 2022 and was released in theaters in November 2022. The scene involving Logan confronting the protagonist Sammy Fabelman (Gabriel LaBelle) over the way the latter portrayed him in the "Ditch Day" film and the two of them ultimately coming to an understanding was selected by Slant Magazine and Polygon as among the best movie scenes of 2022.[8][9]
In July 2023, Rechner was cast on the second season of the Netflixteen drama series Heartbreak High as Rowan Callaghan.[10] It was released on 11 April 2024.[11]
In December 2023, the actor was awarded GQ's Man of the Year award for "Breakthrough Actor of the Year" with the award presented by fellow Heartbreak High co-star Josh Heuston who had won the same award the previous year. [12]
In December 2024, it was announced that Rechner would appear in Scream 7.[13]
