Chrome browser auto launches at startup

Apologies for replying to myself with, what I think might be, a solution - and thanks guys for your suggestions.

On a Google Chrome forum, someone suggested checking for any Chrome background apps running - couldn't find any. But that reminded me of a previous issue where someone else suggested checking what browser extensions were doing.

After laboriously going through disabling extensions and removing Chrome from the Open at Login setting, then re-enabling the extensions one-by-one, it seems that (in one of my Chrome profiles) the CricInfo extension would immediately invoke the Settings notification "Google Chrome.app will open automatically when you log in..." Having disabled the extension, the browser behaves and doesn't start itself automatically, but once enabled it reverts to this unwanted behaviour.

I have a few more extensions to go through on different profiles, but it looks like in my case it's some mis-behaving extensions wot done it.

I'm still curious why this only emerged for me once I installed Ventura?

Thank you P. Philips and Barney,

It's not an option to remove Chrome unfortunately, as I need it for work.

This has also only become an issue with MacOS Ventura for me. I never had the problem on Monterey, and indeed on a MacBook using Monterey it's not an issue.

Thanks.

Ticket has been logged with them, yes.