How to precheck checkboxes

I’ve tried every method i know and googled but still can’t get checkboxed to be Prechecked.

Idealy i wanted Switched but i gave up and tried with checkboxes.

tried added ‘checked’ like so:

And it works in wappler, but once published the ‘checked’ is removed

I noticed it works outside of any Input group…is this by design?

Tried using P tag but no luck

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