@darwindesign Yep, this was a perfect solution.
For anyone else looking;
1: Get any version of OSMC running on your Pi 3 with a data connection.
2: Follow the instructions listed here; [TESTING] Debian 11 Bullseye, moving forward from “…test this update in place…”
3: Success.
Note, following this process also fixed issues I was having with the SlyGuy Disney+ Add-on.