There are like a half-dozen blatant bugs I encounter between daily and weekly in Safari. Text input and textarea editing is buggy in a couple ways, Apple Pay has a positioning bug where sometimes its bottom button is about 1/3 off the screen, certain elements on a couple pages smear when I scroll (but only sometimes). Not even counting ways the keyboard itself is worse now.
I haven’t seen browsing this buggy outside weird niche Linux browsers in… 15+ years?
My issues with Safari have mostly been iCloud-related. The latest one being the iCloud tabs SQLlite database getting corrupted constantly and keeping stale tabs around that I have long closed. 26.2 seems to have fixed it, but it was around at least since Sonoma. I've had similar issues with Reading List, where again, the database gets corrupted and changes that I've made to Reading List get reverted. It is just little stuff like this that adds up and creates poor UX.
If you switch Safari’s tab bar mode to bottom (i.e. restoring the sort-of-one-touch controls that existed before iOS 26), textareas become utterly and completely broken. It’s almost impossible to reply to an HN message, for example.
This bug is so blatant that I assumed my would have been fixed by now, but no.
I’ve highly preferred Safari on Mac OS for a very long time- the bugs and memory leaks are forcing me to Firefox at this point, it’s completely unusable on the betas I’ve been driving lately in the hope they fix the previous bugs.