Google Drive takes a similar approach to managing files in its storage space, however the company’s own suite of word processing apps (Docs, Sheets, and Slides) are among the best in the business.
That way, you can drag and drop your files and let them sync in the background without having to wait for an upload or download in the browser. If you prefer to work from a different set of apps, such as Word (opens in new tab), Excel (opens in new tab), and PowerPoint (opens in new tab), the easiest experience will come from using the desktop client which keeps your files in File Explorer or Finder. From the browser, you have access to the entire Google ecosystem, including its free Docs, Sheets, and Slides apps, as well as other apps like YouTube, Maps, and Calendar.
Google Drive works in a very similar way to Dropbox, however it’s arguably better when accessed through a browser. Paid accounts get access to three e-signatures per month with the company’s HelloSign service, and while its Paper word processing app is a little limited, third-party integrations are aplenty with direct access to things like Microsoft Office from within the Dropbox interface. It’s arguably a better system than Apple’s Keychain and Google Chrome’s built-in tool thanks to the fact that it’s available on most devices, regardless of operating system or browser, as it works through its own app.
The company’s password manager Passwords is bundled in with every account, free and paid, however free accounts are limited to 50 passwords. I've been using it for many years on macOS, Windows, and Linux and never had a single issue.For confidential files, Dropbox recommends storing them in its ‘Vault’ which is a password-protected space within your storage allowance, which can be handy for family accounts. In addition, even the free Dropbox plan already has a number of features I consider a must for Cloud storage that Apple does not offer, such as folder sharing or a file version history. iCloud Drive gets confused every time I have to logout of iCloud and log back in on either my iMac or my MacBook because it stopped synchronizing Safari tabs, and then tends to present me with several versions of my files and claims to have identified hundreds of conflicts. Personally, I use Dropbox (free) for my important stuff and iCloud Drive (200 GB $2,99/month plan) for everything else on my Macs because Dropbox is much more reliable than any other Cloud service I have ever encountered. It was a bit of a mess to setup but once we've had it up and running it's been quietly doing its job.
I know my dad uses it to exchange files between his Android smartphone and his Mac Mini as well as making regular backups of his most important documents, and I haven't heard any complaints for a very long time. I've tried Google Drive once on Chrome OS and Windows, and it worked pretty well in the short time we've had together. My wife uses it on her iPhone to backup photos and sync them with her Windows laptop, and she's seems quite happy. I've been avoiding it ever since though, and I've never used it on macOS so I can't comment on that. In all fairness I should add though that this was in early 2015.
I've had OneDrive running on Windows 7 and 10 for quite a while but no longer do because it went full retard on me several times, and frankly I simply got sick of it.