Is there a "cost" -- not WUs -- to store variables on Groups or RGs?

I often create a floating group and create some groups and RGs where I store info that the page needs. Are there any costs related to storing info on them?

I don’t mean WUs, I mean: does it use processing power – client browser memory usage, delays etc.?

My hunch is that there should have some cost since Bubble actually add those items in the DOM. Is the better alternative to use a reusable’s properties?

Both do same thing, it’s publishing to the elements instance the value. So adding data source to group or a property on reusable I think is essentially the same exact thing under the hood for how those data sources become accessible.

Negligible in the grand scheme of Bubble performance, don’t worry about it.

I don’t know why I wanted this to be true. So I guess I can continuing spamming Groups and RGs in a floating group to hold variables.