Force MBR install with Debian installer, skipping the EFI detection

I want to install Debian (actually Open Media Server, a derivative) by using a Mac laptop (EFI) on a disk (connected via USB), to then transfer it to an headless machine already installed and configured, but the target machine doesn't support EFI, so I want to stick to MBR.

Is it possible to achieve this with the current Debian 11 installer? During the installation process, there was no prompt for it, and EFI was selected, even when I manually created an MBR partition on the disk.

I saw this old question, but it doesn't really answer