Welches Dateisystem für Time Machine auf externer Festplatte (Catalina)?

Es geht nur MacOS extented (journaled) bei Catalina

Zitat:

For as big a change as this seems to be, Time Machine’s long-awaited switch to APFS has been made with remarkably little fanfare—it shows up neither on Apple’s overview of Big Sur’s features, nor in any WWDC session. But in Big Sur, Time Machine does make the leap from using HFS+ to using APFS, and, at least in my limited testing, it does appear to have real-world speed benefits (and a couple of minor inconveniences that you may or may not run into).