Hi, I am Dave, I will help you with this.
Rest assured, that is normal in Task Manager, Chrome, Edge and most other browsers are multi-threaded apps and the main process is broken up into smaller processes like the graphics engine, the audio engine, one for each tab, one for each extension, security...etc and that enables the browser to not make one of the cores on your processor run at 100%, each of the smaller processes can run on a different processor core.
If Chrome is crashing, completely uninstall Chrome, restart your PC, then download and re-install the latest version they provide.
If that does not solve this, you seem to have a lot of Chrome Extensions installed, try removing some of them to stabilize Chrome.