I was using an app that crashed in a weird way and didn’t let me close it with my mouse. Key binds were still working, so I pressed alt-f4 but when the force-quit modal showed up, pressing the force-quit button did nothing. Is there a key bind that force-quits a program without a prompt? I don’t want to have to restart my computer every time I try and debug this.
You can apply whatever keybinding you have assigned to open the terminal and killall the hanging program. More here: https://www.cyberciti.biz/faq/how-force-kill-process-linux/