Microsoft has been trying to be more proactive about this: they changed all their documentation to say Entra ID instead of Azure Active Directory...before actually changing Azure AD to be called Entra ID...

They do, but I think Google is worse about it because it’s all random back and forth. Most of Microsoft’s recent changes have been renaming Office something or Azure something to Microsoft something. Often the product name itself hasn’t changed, or when it does it’s usually grouping a bunch of products with separate names under one product line with related functionality (Defender didn’t rename, but it also absorbed a lot, Purview and Entra were new absorbed a lot of other product names). Teams was Lync and then Skype for Businesses, but I actually think the simplifying and getting away from the Skype branding was a good move.

Microsoft also seems to have a more thought out process for new products in the first place and doesn’t have the reputation for abandoning things all the time.