Solutions
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mc510's post in armbian-bsp-cli-orangepizero kept back, unmet dependencies, you have held broken packages ... ? was marked as the answerWell, this blog post convinced me that upgrading from bullseye to bookworm didn't have to be nearly as complex as the official Debian documentation made it out to be, so I followed those instructions and completed without error. Initially, I neglected to edit /etc/apt/sources.list.d/armbian.list before executing full-upgrade, but it seems to have worked as a two-step full-upgrade.
Welcome to Armbian 23.8.3 Bookworm with Linux 6.1.53-current-sunxi and xradio wifi is working 😀