Oh for sure, browsers are complex beasts, but Ladybird already supports quite a decent chunk of the web. For an initial alpha (which they explicitly point out to be for developers and early adopters) to still be 2 years away feels a bit far out to me.
The alpha release is intended to be fully functional, in the usual sense of alpha testing. That is ambitious. It's not like a shitty game on Steam (or Star Citizen) where "alpha" means 10% of features completed. That is 30 million lines of complexity due within 2 years. Ignoring lines of code, some of these problems within a browser are time consuming and difficult to solve from scratch.
