Sci-hub is kind of abandoned, it lacks articles from before 2021. It stopped around that time; I think it's just too much pressure to publicize articles. The owner Alexandra is from Russia, and Russia also got to ban Sci-Hub.

But the problem here isn't that the "service" is lacking as of now, but that a country that supposedly should care about freedom of information and knowledge just bans Sci-Hub, even though they took some time to do it.