That means that the process doesn’t end when the Editor closes, which is not normal.
This might just be visual, if you press enter instead of ctrl+c, do you get your prompt?
You can check for running processes named godot with ps -A | grep -i godot. Does the process also survive when launched graphically?
If this is not just visual, and also happens on the latest 3.5 version, you can send a bug report.
When launching graphical programs, I recommend adding a trailing & to run it in the background. This lets you continue using your terminal, while seeing the output of the program.