Just encrypt your files before you upload them. Either with rclone, cryptomator or with a basic .7z locked zipfolder.
Ephemeral
joined 3 weeks ago
Belgische Croky of de huismerken zijn prima alternatieven. Lays chips zijn wat mij betreft veel te zoet.
https://eylenburg.github.io/cloud_comparison.htm
Turn on the filter for email about IMAP and you'll have all your options. You'll have to look up whether they allow custom domains though.