It should work the same for all versions of Mac running a modern edition of the web app.
How to Update Chrome Manually on a Mac
Not sure if theres an update ready?
Check the About Chrome area of the controls for details.

pick the three-dot menu at the top right of the net online gate.
Go toHelp>About Google Chrome.
Otherwise, youll see the messageGoogle Chrome is up to date.

Click to restart Chrome and install it.
Chrome Can Also Update Automatically
Typically, the web client updates automatically in the background.
If you regularly close and reopen Chrome, theyll be applied largely without you noticing.

It’s the best way to keep the software fresh with updates.
Can’t Update Chrome?
Are Chrome Updates Necessary?
Updates are the only way we get improvements from software makers.