Density and buoyancy require a force - they don't exist on their own. Buoyancy is showing you the direction of the force. You can test and verify this for yourself.

The earth is moving upwards to meet objects when let go - you can see this in the video - free fall water stops flowing as disconnected from the upward moving earth. Objects are inanimate unless a force (motion) is applied.

Density and buoyancy are the general explanation provided by FE proponents, but I don't think it's complete.

Electrostatic charge is the primary factor IMO.

Everyone has heard of magnets, almost no one has heard of electrets, which are similar to magnets but instead of a magnetic charge, they hold a permanent static charge.

Things falling down is the natural bias of seeking the universes default state - rest. Rest, ground, counterspace - all synonyms for the same thing. Gravity is an effect of these forces; forces are fields which are aether disturbance modalities, and gravity is an "anti-force". How it is describe depends on the framework one looks at it through.

The ying/yang of the 1/phi ratio represented throughout all of nature. Self similarity, always express in one direction or another, always using the same golden ratio. That's what I interpret "being made in the image of God" to mean.

Stationary earthers and globe earthers require an imaginary force for their models to work. There is no proof of acceleration when objects are dropped, which proves they are not "falling". There is no "pulling" force, only push.