Anyone can regurgitate that. It's wrong tho.

Look up a gravity map. Gravity is not a force, or anything. magnetic forces between masses is weak compared to electrostatics. Probably have never even heard of it. Please look it up. Orders of magnitude stronger than mass magnetisim.

9.8 m/s2 is an observed and agreed upon average. Just a calc. A "constant" for acceleration observed.

The connection that it's because Earth's mass is a hoax. That falls apart when you apply your scientific skills to answer the question " is there a curve?"

Good luck though. If you're like most people, you will just accept the status quo explanation that the earth is so big, that's why it looks flat, but it's really not, look government space images ...deerrrr