u/Due_Cat_2132

I can access Apple's own website just fine(!), but not most other sites. (Craigslist loads, barely.) App Store works, kind of, in a halting way, and Mail seems to have problems. This does not have to do with my ISP, since I have tried using the MacBook with a different one and I have the same problem. Brave (a third party browser) also works as expected.

Thinking that perhaps if I re-DL older versions of Safari, Mail and the App Store that they'll work, but I don't know how to do so.