Creation Club mods exist in a sort of limbo on what's officially canon in Skyrim lore, but their inclusion in the Anniversary Edition - an official Bethesda release - gives them quite a bit more credibility.
Items in the Creation Club store have been curated by Bethesda, and are all compatible with each other, meaning installing one won't cause another to become unusable. In a sense, Creation Club content is a step above the average mod, but doesn't quite attain DLC status. The Creation Club launched in 2017, offering a less-than-official means for Bethesda to add fan-created content to both Skyrim and Fallout 4. For the game's 10th anniversary, Skyrim Anniversary Edition will add a wide variety of content from Bethesda's Creation Club program. The open world RPG has had incredible staying power in an ever-evolving games industry since 2011, being released on nearly every platform possible. It's been 10 years since the release of The Elder Scrolls V: Skyrim, and with TES VI still years away, Bethesda has decided to release yet another version of Skyrim with even more features.