We're using reuse-parts.cfg with reuse-raid10-6dev.cfg for kafka-main brokers (T427088) but the debian installer stopped during reimage because it does not reuse the existing swap partition T408777: Swap partition issue when installing a DB with Debian Trixie.
The workaround from T408777 falls short here. While it let's the installer pass (by suppressing the question) is leaves the system without swap. Also, I think, it only installs grub to /dev/sda which might make the system unbootable depending on boot order or when sda fails.