Pretty clearly there's countless ways to putt successfully. Ricky vs Anthon is miles apart in terms of mechanics, and they both are incredible putters.
The biggest issue when releasing too high is to extend the disc forward toward the heart of the chains from the bottom of the down swing. Doesn't really matter how it gets to the bottom of the down swing other than you want to keep it smooth and controlled - they key is to get the whole system ejecting forward and flying the disc as flat as you feel comfortable at chain height.
Adding lob or nose up/down means another variable to control - doesn't mean that it's bad: Simon putts with the disc floating very nose up. It just means you have to control it.
I've had success with getting the feel for how much force it takes to keep a disc flat and on target by flipping it upside down and attempting to keep the disc in the air until it gets to where the pole meets the ground. From 25 feet that's a good indicator of what a confident speed should be getting you - and when you flip it right side up, that same speed will keep the disc chain high and relatively flat.
Extending your entire arm, fingers toward the pole will help with dialing in aim left to right and height.