We have three primary use computers; two Android tablets, and a 17-inch Windows laptop that I assembled to use for finance related tasks only. The tablets serve for browsing, email and Amazon purchasing (not an insignificant use), while I use the laptop to keep our books, checking, stock transactions and all similar activities. In particular it does not see any communications related activities (email, notes, messages etc.). This machine, and its backups, are offline about 98% of the time.
Windows lost us at the Windows 10 system and their attempt to limit use to their software only. I would note that an inventory recently revealed three Windows 10 laptops, two additional Android tablets, and a Windows 7 laptop used to support karaoke, recording/editing and related musical activities (Tara is a singer).
Ernie