Hasn’t PoS been something “in the works” for ETH for something like 6 years now[1]? I don’t think anything guarantees its delivery in early 2022, it all seems like hopeful speculation until they deliver something.
[1] This stackexchange question dates back to 2016, the earliest evidence I could find of ETH proposing PoS. https://ethereum.stackexchange.com/questions/9/why-does-ethe...