Note that left ctrl trick is still just a PowerToy in Windows. That's one I'm surprised hasn't graduated to in box given its general usefulness for accessibility and overall simplicity.
Exploring mouse options for something else and stumbled upon a reminder there is an in box feature for it. It's off-by-default and the changes that Power Tool makes are: switch from single Left Ctrl to double Left Ctrl, and switches from classic Windows "wave of rings" visual (it expands a bunch of rings out from the pointer as a very simple animation) to the "Spotlight" mechanic that dims the screen except for a circle around the pointer.
