From internal leaks within the company as well as external analysis, the tip of the iceberg behind Facebook's spyware empire is exposed. Take a look to better protect yourself when you're not even on the platform: https://simplifiedprivacy.com/facebooks-corrupt-off-platform-surveillance/
I feel like being defeatist about this is what FB would want. There are ways to obfuscate yourself though techniques like generating noise or using anti-fingerprinting features that work under the objective of making your print anonymous and generic rather than hiding you completely.
You can also do things like ask your friends and family to simply not post pictures of you online, your mileage may vary depending on how seriously your friends and relations take your wishes, but it worked for me. And I simply avoid pictures with people I know who don't care about privacy.
Any attempt to create private space is worthwhile, even if it doesnt completely hide you you're still able to learn and better understand how you're tracked so you can make better decisions and mitigate the problem.