I feel like IndexedDB is becoming this abandonware as well. There are so many ways where this (IMO rather badly designed) API can be improved but the standards committee seems completely uninterested. Even things like adding BigInt as primative is unimplemented.

I fear this will be even worse now that we have the origin File System API and people can bring their own database engines (like web-assambled SQLite). But for those of us that are striving towards smaller download sizes this is a disaster.