Fortunately non-free works for Live USB. Hopefully the free one is able to catch up and support RTX soon. Will reslot and follow the wiki tomorrow and edit back here with the results. Should get the GPU to work even on KDE 17.1 since the nvidia driver would be 410.66 and support for 2080 Ti was added in the version prior. Thanks so much for getting me past the first hurdle!
Edit: Said wiki link didn’t work because card has to be plugged in to detect and install drivers and you can’t get to the GUI w/o the drivers, so somewhat of a chicken and egg situation. Tried installing
nvidia-beta but the build failed and upon reboot I couldn’t boot into the partition. Ended up just doing a reinstall via Live USB and fortunately it seems smart enough to use non-free for the install and now everything is running nicely thus far.