Reply To: What is the difference between LoopTools → Flatten and scaling an axis to 0 (X/Y/Z = 0)?
I actually mostly just use Circle and Space (and sometimes Bridge) from Loop Tools.
G Stretch is not mentioned in the Addon’s Documentation, but it looks like it’s broken. Here’s what it used to do (2.80) and what it does now to a Cube and a Stroke:
It also doesn’t throw an error or warning anymore, if you try and use it without a GP Stroke and might give really unpredictable and unwanted results (with or without Stroke):
Use it to your advantage if you want/can, but it doesn’t get a recommendation from me😉