What makes Safari a great option is its suprisingly generic fingerprint:
- It’s pre-installed on all Apple devices, so average users most likely will choose it as their daily driver;
- iOS, MacOS, etc. all have a limited set of hardware variations, since only one manufacturer can make them, unlike Android or even worse Desktop systems;
- Combine all that with a trusted VPN + DNS-level adblocking setup to boost privacy/security.
The only caveat is how closed the nature of Apple products is. How are you certain your bookmarks, plugins, search queries, saved pages, autofill and browsing history aren’t constantly getting sent to Apple’s servers? To be fair this question is applicable to all of their software.