Guild Wars 2

Being a longtime WvW player, I know about the world bonuses and how they apply to my play in PvE. But I was curious about such bonuses being applied to me in raids. Do these bonuses apply to only open world content in PvE or ALL PvE content (including instances like raids).

For example, our world has an 8% bonus to all healing done. Now, that applies to my druid in both WvW play and PvE play. But do I ALSO get the 8% bonus to raids and fractals?

I would like to test this theory but not really sure where to start other than asking the community for ideas or even if the answer is already out there. But I might update this thread later with my results if they are even worth testing.

I believe they only apply to open world zones not the instances.

Edit: the wiki says
This effect applies to everyone playing on their home-world in both WvW and PvE with the exception of Raids.
https://wiki.guildwars2.com/wiki/Power_of_the_Mists