rxdb has a toxic license and tried to do too much in too many different ways and does things like have open source components that are just working worse and are slower. its something that a lot of people were appalled by including me. they also changed so much it was hard to keep track of how things actually worked.

pouchdb is definitiely the OG local first database, and it inspired rxdb and was the core of it for a long time. it has definitely flaws mainly the developer ergonomics and not very up to date and non homogenic ecosystem. my feeling is non of these issues were the reaason rxdb parted ways, they could just have decided to > contribute < by fixing them and improving, but that would not have allowed them to create moat that they can enforce users switching to pro feautures with.