Fidget toys got a bad rep, especially after Fidget Spinners became trendy for the younger generation.
But just having a little thing I can toy around with has been great for my pens and game controllers, as in the before times my grabby hands would fiddle with them whenever I was thinking about shit and it was bad for their durability.
For less than a dollar? (ay, currency exchange rates) Yeah, one of the best things I bought.
I find that my brain processes information better if my hands are also doing something. So, I use various fidget toys to help me concentrate during meetings.