How to split the image on the screen by cameras and information?

Question

Debian

Hello
There are 2 broadcast rtsp streams and there is a dashboard on the website.
Tell me how it is possible to divide the monitor screen into 3 parts and display the cameras in 2, and in one browser (preferably without the frame of the browser window)?
The issue of switching between windows is also interesting, so that one can be expanded to full screen.
As far as I know, the ffmpeg package has something similar, but I can’t find it + I need to somehow make a browser in the 3rd window.

Answer 1

Tiling window manager?