Apparently as part of the "desktop class" browser experience in iPad OS, Safari lost its ability to double-tap to zoom. This is a feature I use on basically every single webpage, including when I am browsing on an actual desktop computer. Chrome's lack of this feature kept me on desktop Safari for ages. I can't believe they've taken it out. It significantly deteriorates my browsing experiencing. And for what? To add more text selection gestures or something? I already find it annoying that I randomly select text as I browse a website on iOS, I don't want important features being dumped in favor of more of that.

Edit: Upon further inspection, it may just be horribly buggy? It seems to sometimes attempt to zoom out on double tap (despite being at 100%), which means somewhere the code is still trying to work...