From a standard, Wayland GUI 23.04 Desktop environment, I opened a Terminal windows and entered "sudo update-manager -d" to begin my upgrade then simply attempted to follow the prompts. As I said, I had to make semi-educated guesses when some dialog boxes popped with what I believe were yes/no questions.
I failed to elaborate on what exactly I did.
From a standard, Wayland GUI 23.04 Desktop environment, I opened a Terminal windows and entered "sudo update-manager -d" to begin my upgrade then simply attempted to follow the prompts. As I said, I had to make semi-educated guesses when some dialog boxes popped with what I believe were yes/no questions.