Decided after some time to go back to using my Pro1 as a no-Google phone. So,factory reset and flashed Lineage-21-20241005-NIGHTLY-pro1-signed,zip with September 5th security patch and Magisk27.zip. All installed smoothly via ADB sideload. I tested root with TotalCommander and it was successful (I did have to let Magisk update via it's app after the sideload, but it took care of the boot image dance). Quick and easy.