An operating system needs to guarantee a minimal level of stability before any other metrics even matter.
Randomly losing files is not at all acceptable and IMO puts it below that minimum. The prettiest font-rendering in the world won’t matter if your documents are gone.
A recent major Windows update deleted user documents as well. [0]
Catalina's file loss was confined to iCloud Drive during the beta, and what happened to me was in the Music app after release.
I grew up with Windows, and the recent problems with macOS are still not bad enough to make me want to go back to Microsoft.
macOS is the occasional burn, while Windows is a constant assault on multiple fronts. UI, spyware, performance, security, consistency, aesthetics, accessibility, lack of a multi-platform ecosystem (phone/tablet/TV) and bugs of its own like every other software.
Randomly losing files is not at all acceptable and IMO puts it below that minimum. The prettiest font-rendering in the world won’t matter if your documents are gone.