Im building filtering for a product with 20+ possible filters and the UI gets messy fast. Putting all filters visible makes it overwhelming, hiding them in menus makes discoverability bad, using a slide out feels clunky on desktop. Not sure what the right pattern is here. Ive been studying filter implementations on mobbin from ecommerce and marketplace apps since they deal with this problem constantly. Most use some combination of visible key filters plus a "more filters" option. Seems like the trick is identifying which 3-5 filters matter most to users. Still figuring out the exact implementation but at least I have realistic reference points now instead of inventing it from scratch.