Multiple Perspective apps in one

Hi, i am running touchscreen panels in production on Raspberry Pis and these run single Pespective app in Chromium. I have a request to run more than one application on that same screen but i am not sure how to approach this issue. Does anyone have any suggestions?

I was thinking about creating a project, that would just have navigation and iframes that would embed other projects in it.

Or deal with it on chromium level which i dont want to do if possible. The idea is to lock down the os and browser so noone can mess with it and break it.

Any advice is appreciated