Proton

Filen.io is decent. Client is open source and storage is locally encrypted. They claim to use zero knowledge tech on their end.

Additionally, look into rclone to upload and automatically encrypt data to cloud providers. This way, cloud providers can't access your data regardless.

My understanding is that their users were calling them to account pretty heavily on Mastodon. This is a way for them to curtail that (and save face) without answering to the users there over the CEO's pro-Republican/pro-Trump statements. They can't control the narrative on Mastodon so they're running away.

This is despite the fact that a lot of privacy focused potential customers aren't using Twitter or Bluesky or Threads. In fact, the userbase on Mastodon that followed their account was larger than that of both Bluesky and Threads.

Whoo boy. The Proton CEO posted a deeply troubling remark praising trump and republicans as the champions of the little guy, and lambasted democrats for being in the pocket of big tech. This, understandably, seemed rather... icky to a great many people, who dislike the idea of the service they trust for privacy kissing the ring of the Fascist in Chief/Putin's Towelboy/Elon's Hamberder Carrier. This might have been more palatable if it was made clear that Proton itself does NOT endorse the policies of Melon Husk's puppet administration and the MAGAt Horde, and that the original post was made by the CEO in his capacity as a private citizen, and not as the CEO of Proton.

So when, in the face of backlash from the federated community, Proton decided to just leave the fediverse, rather than clarify its position, but stay on Reddit & the Xitter, using the half-baked excuse of "it's too expensive for us to cross-post on this completely free system", people, understandably, took this to indicate that Proton, previously one of the most trusted privacy companies, may not be as independent as its swiss headquarters leads one to believe.