Web devs seem to love to sh*t on Safari for not adopting all the latest let-your-browser-do-this stuff, often calling it the new IE. However I use it as my main browser with Wipr for ad-blocking and it's glorious.
I've tried FF many times and also Opera, Brave (ooh boy!) and Chrome and some other browsers and always come back to Safari.
I don't think devs realise I don't want my browser to have more and more access and control. It's great for thin computing but is there really some distinction now to thin computing than the early Chromebook days? I don't think so. All I really want is a moderately effective way of blocking ads and snooping. Giving websites more control isn't going to achieve that. Ofc I could always delve into the tech and get this add-on or that thing but where does that end‽
Strangely enough, the one browser I've found that would challenge Safari most for me is duckduckgo's browser, it's simple and functional.