Re: Begone foul beast :o)
SharePoint Online is fully compatible with Chrome as is SharePoint 2013 and 2016. In fact, if you call MS for support on any of the O365 web apps and tell them you're using IE or Edge, they'll ask you to give Chrome a go.
If your company has told you not to use Chrome it's because they don't want to support it.
If your company's intranet doesn't display cirrectly in Chrome then it hasn't been designed properly.