Unblock Origin is best in class for sure and I use it on my other browsers, but when browsing on Safari I don’t notice any real difference in the number of ads I see compared to Ublock Origin, that is to say I don’t really see any ads on any browser I use.
My point being that the statement that there’s “no good ad blocking on Safari” is just not true. Saying “there’s no Ublock Origin on Safari” is true, but that’s not the same thing as “no good ad blocking”. AdGuard works just fine.