What is the opinion of Reddit about the
Bed Claw Unibody Adjustable Height Bed Frame Slat Center Support Leg, U.S.A. (Set of 2)?

I guess you mean transversal to the the slats lol, if it wasn’t a loft bed I would suggest something like this -> Bed Claw Unibody Adjustable Height Bed Frame Slat Center Support Leg, https://smile.amazon.com/dp/B07N953SF4/ <- but I don’t know how to apply that to yours.

A post about a wobbly loft bed with ideas on how to reinforce it, and plenty of puns! https://www.reddit.com/r/DIY/comments/5ofyfh/supports_for_wobbly_loft_bed/

Make sure to check any bolts are still in place and the slats are ok from time to time.