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/
If you are on Android, I’d try using DuckDuckGo’s app tracker blocking feature. Basically, it routes it through a VPN and blocks trackers.