Google Image search has an option under Tools (seems like you need to search first to get it to show up), then you can pick one of unfiltered, "Creative Commons licenses", or "Commercial & other licenses".
Mess up attribution and in pre-v4 CC license it reverts back to All Rights Reserved.
This is the business model for some folks. 500 - 5000usd demand per infringement is a nasty surprise.
Here's one such case and company. https://petapixel.com/2022/06/01/copyright-trolls-are-suing-...
it’s complicated
Just realized I did not really answer the question.