Leaving emacs frustrates me, especially when it’s for things I would normally do in a command shell. But alas, I would regularly drop into a shell to run the top command, as I did not know of an emacs replacement. I became fed up enough with this to do some googling, and found proced, which is a dired-like mode for managing processes.
I haven’t done much with it yet, just looked at processes and killed an xeyes as a test. It seems to have common keybindings: g to update the buffer, q to bury the buffer, marking like dired, etc. It doesn’t seem to have a home on the internets or an info page, but M-x proced [enter] C-h m provides good documentation. Glad to have this new-to-me tool in my belt.