How to use analog win+r in Linux?

Question

linux

I watched the video https://youtu.be/7aBKptBYILw right at the beginning
. There, the man does not poke the cursor into the shortcut, but calls the environment with a command. And it's not a terminal. What is it and how to use it?

Answer 1

alt-f2 in kde?

Answer 2

There is a synapse program, which is much more convenient than the standard alt + f2.
And yes, alt-f2 works in all DEs.