Most members seem to like tinkering and trying new things. Here is something that maybe you have looked at, but if not, you might want to try it yourself. The project is called scprime. Apparently it's been around a few years. Basically it is a cloud disk and can be used like AWS(S3) or Wasabi, etc. Not looked at or used file.io but may be the same or similar. I'm trying it out as an offsite backup for all the computers in my home to see how it compares with Wasabi. The files are described as being encrypted in pieces and then distributed to xa-miners (which are providers of the storage). To use it requires running an xns-relayer. You can buy one from them, or you can use a linux or windows box you own, download their software, and run your own linux or windows xns-relayer. It is described as redundant so if a provider of a piece of a file goes down, it can be downloaded from another provider. I'm currently using Wasabi with Arqbackup to backup all of my Macs to Wasabi. Total space is around 7 TB and I'm transferring 5TB of static data to the scprime network as a test. So far the relayer has sent about 800 GB a day over my Google fiber 1Gbs network and Arqbackup is almost finished. Another day maybe. The announced price is $0.0049GB/month or $4.00/TB/month which is less expensive than AWS, Wasabi, and perhaps others. Here is that information, https://xns.tech/pricing/
I've been told that they are not charging for the storage yet, but I have not verified that so use at your own risk. Sounds like it may be a less expensive alternative for offsite backup than AWS or Wasabi, etc. Here is a link to setting up various backup programs to a relayer. https://xns.tech/docs/arq-backup-2/
Setting up Linux xns-relayer software is described here, https://xns.tech/docs/linux-ui/
Setting up Windows xns-relayer software is described here, https://xns.tech/docs/windows-ui/
Additional info can be found here, https://console.xns.tech/dashboard

I have no affiliation with the company, but am trying out their system for offsite backup, but using my own linux server with Arqbackup instead of buying theirs. As always use at your own risk.