If they invent their own protocol it's probably going to take another year or two before wee see a usable implementation tho, the core components of Bluesky are closed source, well and Threads should be a activity pub app too but I have my doubts if they will ever implement it tbh!
I think they posted recently they were looking to make it decentralized in early 2024
If they invent their own protocol it's probably going to take another year or two before wee see a usable implementation tho, the core components of Bluesky are closed source, well and Threads should be a activity pub app too but I have my doubts if they will ever implement it tbh!