We are living in a multi-device, instant-access, access-anywhere, cloud-based world, and the desktop file-based paradigm has trouble with this reality. The vast majority of non-technical people would struggle with desktop-based files when they want everything everywhere all the time on every device at any moment.
Is that what they want, though? Most people that work an office job, at least, still deal with Excel, Word, and Outlook. Maybe they’ll setup work email on their phone, but that’s probably it. I’ve noticed a pushback (true for myself, too) ever since the push from work-supplied devices to BYOD.
People are realizing mixing private and work communications on the same device is a bad idea. The kicker is, this isn't even some kind of corporate conspiracy. It's just human nature - if you hook up your business e-mail to your private phone, you are going to be checking it after work hours, you will start responding to e-mails, and your work habits will shift to account for that.
That's why I just don't do that first step. The only connection between my current smartphone and my work is some TOTP keys in the authenticator app, to enable more convenient login to some cloud services the employer makes us use. I talked with a co-worker recently, who made the mistake of installing work communications on their personal smartphone, and they very much regret it - not because the company is exploiting it, but because they can't discipline themselves to not check business messages after work.
