ACF options field for off-canvas menu

I would like to add a GP element into an off-canvas menu.
In that Element I would like to have an ACF which will get populated via the options ACF page - https://www.advancedcustomfields.com/resources/options-page/
Is that possible?
That field would be a notice about a specific conference / sale / notification.
I would like the site's editor to manage that notification from ACF options page.

Is that doable with ACF elements(blocks with dynamic field)? or should I create a hook without using blocks?
Or create an ACF block which will then be added to the off-canvas menu with a block element hook?

Thanks
Dan