In the spring of 2025, Union SG became an option for Lynnt Audoor. Union showed early interest, as they saw Audoor as suitable for their model. Club Brugge rejected an initial bid from Union and ended further negotiations. Other clubs also made inquiries, but Union was the most definite option for Audoor for a long time. In the summer of 2025, Club Brugge convinced Audoor to stay, despite two offers from Union. Audoor could earn about double at Club Brugge compared to what Union offered, according to Het Laatste Nieuws. Het Nieuwsblad reported that director of football Dévy Rigaux and Audoor's mother were involved in convincing him to stay, due in part to his disappointing time at KV Kortrijk. Audoor ultimately extended his contract with Club Brugge until 2029.

Belgian defensive midfielder Lynnt Audoor was close to leaving Club Brugge last summer when Union SG submitted a concrete offer for the player. Club Brugge rejected the proposal because they found the amount too low and wanted a much higher fee. Audoor, now 22, was interested in the move as he sought more playing minutes and saw better opportunities at Union. Club Brugge later decided to keep the player, giving him a significantly improved contract that runs until 2029. According to Het Nieuwsblad, all issues between the two parties have been resolved, and the club and Audoor are in agreement. According to Transfermarkt, the Belgium U19 international has a current market value of €1.00m. He has made six appearances with one assist in the Jupiler Pro League this season.