If you absolutely cannot afford it, stick to the of ADB App Control or use the open-source Universal Android Debloater (UAD) . You don't need an "Extended Key" to remove Facebook from your Samsung; you just need patience.
For years, this desktop software (using Android Debug Bridge) has been the gold standard for debloating Samsung, Xiaomi, and Pixel devices without voiding warranties or rooting. Adb App Control Extended Key
However, if you are a student or just want to test the full features before buying, be extremely careful. If you absolutely cannot afford it, stick to
By [Your Name] | Updated: May 2024