Former Rectangle Pro user here. I also found out about Loop a few weeks ago as well. I love this project because it's fully free and open-source. The UI design is very well-made when compared to Rectangle Pro. The developer is also very responsive to feature requests and bug reports, and are consistently adding new features with every update. I highly recommend it as well!
I tried them all: Magnet, Rectangle, Yabai, Raycast window management, maybe something else I forgot. I have no clue how I only learnt about Loop today. It seems to have a combination of features that works best for me personally:
- triggered by Globe key (both radial menu and shortcuts)
- radial menu below the cursor
- two arrows at the same time for different action
- properly visible preview.
I have high hopes to live happily ever after with Loop.