Thanks for the response linuxdev. I have worked with the Jetson for about a year now, and installed the Grinch Kernel to 4 boards now (this will be my fifth, hopefully). However, I am still certainly new to Linux programming by many standards so please forgive any ignorance on my part. This is the only time I have experienced this behavior while updating.
I did “apply_binaries.sh” on my host linux machine prior to flash, and was able to install Grinch 21.3.4 via ssh, which I believe disables usb autosuspend (my first thought when the mouse and key board were unresponsive-ish). However the system was still incredibly laggy to the point of really not responding. I flashed the Jetson twice so far, with the same results both times.
On a similar but different note, has the thread by Santyago for installing Grinch 21.3.4 been pulled? All links to it appear to link directly to the forums. The guide I was using was https://github.com/jetsonhacks/installGrinch.