What utility allows you to isolate GUI applications in Linux?

Question

linux

On Habré, a utility was periodically mentioned that allows you to run a GUI application in Linux in isolation, with separate routing rules and something like jail.

Answer 1

Here's an example: https://wiki.archlinux.org/index.php/Skype#Securin...
Isolation is a program's restriction on interaction with the environment.
Accordingly - depending on what you want to limit it to (file system, network, memory), look there.