We created our own collectible w/ Verse that includes all the features Collectible Objects do, and then a bit more as well - bob/rotate mats, on collect VFX/SFX, perf optimization for large amounts of collectibles, etc - the only feature that this implementation lacks is unique per player visuals/collection. Happy to discuss more & show examples of our work if you need!
@ImmatureGamerX Figma/Figjam are great tools for design, brainstorming, storyboards, and tons more! The free tier is more than enough for a solo or small 2-3 person team. Used it for web dev, now use it for all of my feature/game concepts as a mind map kind of thing.