Click here for an article by ComputerWorld from Nov 2021 called "50 Chromebook tips for maximum productivity" that is full of useful tips to show you how to get the most out of ChromeOS.
Examples of some of the items included that you may not have heard about are ....
The little-known shortcut for opening the fully expanded Chromebook app drawer in a single step (see tip #5)
The trackpad trick that'll let you hop around between different apps and processes like a pro (see tip #11)
The secret key combo that'll restart your system in seconds flat (see tip #35)