Yeah, you'll be missing out on hidden gems. It is inevitable. I have a "completist" tendency-personality myself. Spent many-hours combing through the Marketplace (Marketplace search) and through my Library (in-game art search). Constantly discovering previously-unseen art packs. Regularly finding items that come up under 1 tag, that never came up before under a different tag that also would've fit for that asset (art-piece). The only way to kind-of keep up 100%, is watch the Marketplace New Releases that come out every week, and look at all of them. That's after you catch up on purusing the 6+ years of backcatalog. It's voluminous. Another good entree' to discover the unfound is to find your favorite STYLE of art, then identify 1-2-3-several Artists who produce that style. Then click on each of those Artists' Names and look at all of their product catalog on here. Find their back-packs that had different Tags that you didn't think of searching for, and-or which failed to have the Tags that you'd tend to search for. Some of the very old Marketplace packs don't have Tags at all. I think the modern art items have a few (3?) tags each, and should also pick-up from the Pack's title, the Artist's name, and each Asset's name-title should also function as an additional Tag(s) word(s). Obviously depending on vocabulary, synonyms, spellings, and lack of standardization, there is lingering confusion and failure to group like-items. For example searching for "Animated" will not necessarily bring up every animation. Even searching for "Dragon" won't positively bring up every single dragon every time (some that appear to be dragons, may lack the dragon tag, they used up their tags on other terms, or they mistagged). The Library search in-game may or may not be currently Bugged and-or lacks a feature, it tends to pick up items from Tags but sometimes fails to pick up the Title (Name) of the item. Good luck in your search! If it's anything specific, feel free to send me a PM what you're looking for & I'll let you know if I've seen it, or if I know an alternative tag word, or if I know an artist who sells that type on Marketplace.