Timeshift
Takes system snapshots so you can roll back if something breaks.
Installs from Ubuntu's own software archive.
System Restore comes with Windows, so it won't be on a new Linux PC. This free app does the same job, and TuxPick installs it for you.
Install Timeshift with TuxPickIt works on Ubuntu 22.04 and 24.04, and on systems built on them like Zorin OS and Pop!_OS.