This is why https://farside.link/ is a very good thing to use.
Well, it moves the issue of privacy-frontend linkrot one level higher.
What happens if farside.link goes down? Should there be a service that redirects between multiple Farside instances? (for start it would be great if there were any other Farside instances)
That's again the same issue, but on different level.
Is solution somewhere in IPFS or in some other decentralised technology?
No idea, but it would be great if more people paid attention to this and helped find these solutions.