Conda init with a read-only installation prompt and other issues

My installation may be a bit unusual but it’s been satisfactory for a long time, but the 2022.05 release seems to have introduced some issues. Notably, running

conda init bash

asks me for a password (because it’s trying to use sudo). If I fail to sudo (as most users will), it still modifies my .bashrc, which is great. But if I start a new shell the prompt has only "(base) " in it…the rest of the prompt is gone. I found similar reported as a bug and the fix was “run conda init bash”

Is anyone else doing similar? Any suggestions on how to get a proper prompt? Or a different way to arrange things such that each user doesn’t need to install anaconda for themselves?