How to set up a keyboard in VNC?

Question

linux

Good day. There are Debian and Ubuntu latest versions. They have tightvncserver installed.
The problem is the same on both: when connecting from a Windows machine with any VNC client, the buttons on the keyboard seem to be mixed up. Those. In general, all the buttons do not match. It's impossible to enter anything. This happens only in a QT application, in a regular notepad everything is fine. All sorts of Del, Home, End, Shift, etc. are also confused.
Thank you.