Both Facebook and Google Ads are the biggest players on the internet. The main difference between the 2 is that Google primarily falls under paid search and Facebook is paid social. Use Facebook Ads if your business prioritizes reaching a specific demographic audience or you are building mass awareness and consideration for your product.
However, if you’re looking to generate sales or leads, then Google Ads might be a better choice for your business. Or if you find that your keywords have enough search volume on Google.