Network simulation in Chrome (or every web browser based on Chromium project like Brave, Edge etc) help developer to test their website under poor bandwidth like 3G.
To throttle a connection and simulate a bad bandwidth in Chrome :
No throttlingdropdown, as in this example:
Slow 3Gpreset to throttle bandwidth to slow, you can also add a custom preset by clicking
Empty Cache and Hard Reload.
The website will reload simulating a slow connection. This is how to throttle bandwidth.