Cloud storage services with lifetime option

I hope you know that when they say lifetime, it means lifetime of that service i.e till they shut down and not your life span.
Are you looking to backup important data or just some additional storage?

Most members use this -
https://techenclave.com/threads/sharing-ms-office-365-with-1tb-cloud-storage-₹500-year.188329/page-37

Well I highly recommend Filen.io. I’ve been using it for over a year now. Apart from the encryption, they’ve really developed their feature set and gained popularity. Read their white paper if you wish.

Whitepaper here: https://cdn.filen.io/whitepaper.pdf

They have lifetime plans available right now. They keep coming and going depending on where they are in terms of their revenue.

Here is an affiliate link if you'd like to use: https://filen.io/r/b28d8e3ccb1ff9d46fa2d9e70222c9e7

and here is a normal one filen.io if you want a direct one

Umm, not exactly cloud storage, but Oracle offers a always free tier where you can get like 200GB of block storage.
But it's not like Google Drive, you'll understand it if you are into IT/DevOps/Programming. Hope it helps !