There is no such possibility, the sticky add to cart is available for single product page only.
You can maybe find a plugin that can provide this functionality, but we don’t give guaranty for full theme compatibility with 3-rd party plugins.
P.S. Button with a custom link can be added in Header and sticky header, like on this demo – https://xstore.8theme.com/demos/2/ecotransport/ https://prnt.sc/r5tmgo
Regards