The shame is I like Gmail, but I don't trust the ba#####s.
I am forced to use Outlook in one case and I choose to use Yahoo for another account. Every time I use those accounts, I am pained by how awful they are. Search on Outlook is abysmal. I spent 30 minutes finding an email in Outlook that would have popped up in under 30 seconds on GMail. And Yahoo is slow and cumbersome.
The simple fact is that Google does search very well and applies that intelligently to GMail. The thing is, I the tech required to intelligently search a small corpus like my personal email is readily available, so I would guess that any service that is not irreparably hidebound (aka Outlook) would now be indistinguishable on that score.
>>GCalendar
I don't feel like the calendar is that hard to get away from, but every worthwhile calendar is going to integrate with all sorts of things in the cloud. I have calendars imported and exported by .ical feeds and I just can't really even conceive of how I would secure those without adding a huge hassle to my life. So I don't every expect any level of security there.
>>Dropbox
I still have things on Dropbox and Google Drive, but I've mostly migrated to
pCloud which offers lifetime accounts (whatever that means, but at least until they change their minds, I'm good) and full encryption. So right now, I have 2TB with encryption, which means I can backup all my personal data (i.e. not a disk image including apps and OS) with no problem. It's more bandwidth than space that's the issue (even places with decent downstream speeds often have horrid upstream).
I couldn't be happier with pCloud. In my opinion, it is superior to Dropbox, Google Drive or OneDrive. I can't think of one feature any of those has that is not equalled or improved by pCloud. For example, only OneDrive and pCloud have rate limiting settings, but pCloud does it better.
And, to bring it back around to your actual topic - pCloud has both GUI and CLI versions for Linux. Does anyone else offer a CLI version of a cloud storage app? Probably rarely used, but it tells you what their mindset is.