Dungeons and Dragons 2024 5e Rules Clairfications and Scenarios

Grappling in Midair Question : My understanding is that one of the rules that can be used is roughly " a creature with a fly speed and not a hover speed if knocked prone falls 500 feet instantly" or something like that. I am curious if the same thing would happen if the same creature were to be instead grappled, reducing its speed to zero, and then let go, or would they immediately regain their fly speed and not fall because they are no longer under the grapple condition? First if you are simply looking to knock someone out of the sky you are WAY better off using the Shove action instead of attempting to Grapple . Here is why.. The shove action gives the target the prone condition and thus they fall per the rules.   Lets set up the scenario here. Two creatures (A & B) are flying and A decides it will be funny to watch B fall to its demise. A will have to make an unarmed attack to either grapple or shove B.  If A succeeds its unarmed attack it can inflict the Prone c...