I use my own library of domains exactly for scenarios like that
This changes absolutely nothing about how I use sci-hub. As long as I can find the front page and search for a DOI, I don't care how many search results Google censors.
If I go to a particular Sci-Hub mirror and it's down, I often go to the Wiki page to see the different TLD options. Same for checking some of my favorite Torrent trackers. I don't use Google for any controversial searches anymore, but if Wiki continues to degrade in quality, I'll really be SOL.
There are alternative search engines to Google, in particular some where base censorship is not so easily enforced:
Why does it matter though?
I'd wager few people would use Google to search content on Sci-Hub. The normal usage is simply entering the DOI of the paper you want on Sci-Hub's front page.
Note: you can still search for Sci-Hub itself on Google, and find plenty of pages listing active mirrors.
Is Sci-Hub still relevant? Haven’t they been frozen for like 5+ years at this point?
Hail the corporate overlords!!!
[dead]
Check https://open-slum.org/ what's up in the shadow libraries world.
Anna's archive & Z-lib has mirrored all of Sci-hub and are indeed a viable alternative.