I can reproduce this with the Trixie release installer on my Lenovo Thinkpad T14 Gen 5 (AMD) laptop. I was able to work around the bug, without disabling the WCN785x/ath12k wifi chip in the BIOS, by connecting via wired ethernet (r8169) and booting up the live image, and running the installer from there. After installation, wifi works fine.
- Bug#1103240: installation-reports: The installer hangs on ... Holger Wansing
- Bug#1103240: installation-reports: The installer hang... Pascal Hambourg
- Bug#1103240: installation-reports: The installer ... Pascal Hambourg
- Bug#1103240: installation-reports: The instal... Pascal Hambourg
- Bug#1103240: installation-reports: The in... Pascal Hambourg
- Bug#1103240: installation-reports: The installer hang... Bastian Venthur
- Bug#1103240: installation-reports: The installer hang... Chris Snook

