Global-agnostic worklet, that's a thing?

Not sure where to bring this up, but I was looking at “worklets” recently, specifically for ses-frame and could not help but feel caught in 22 with global-agnostic worklets (ie ones that seem to get one of any global scopes at any given time of execution) which will likely be the case for the intended use in the use case I am exploring.

More on this phenomenon: CSS Paint API worklet