Honestly, I would recommend just giving it a go. You can always save your current controller config and then go right back to it. I only say try it cause when I looked up videos I didn’t quite understand, like I got the idea but it seemed weird. Actually trying it makes a lot more sense.
Its major issue though is I felt like I was tweaking it more than I was playing, and I have found myself a very good set of controls with the Steam Controller which translated to the Deck, so I know exactly what to set for each game even on the first time. For the Flick Stick setting, I feel like one game would be fine standard settings and another game would need to change, sometimes not even getting it working. So YMMV there.
P.S. set a binding for toggling an auto-sprint on the back paddle. Auto walking is a default for any game I play!