Who cares about the delay of UI, thats going to be pretty much similar. I value the stability much more, so I'll better wait and get a working system, rather than a chinese style buggy beta version. That was the main reason I moved on from chinese phones to Samsung, and it worked rather well so far.
(Update: Investigating possible reasons) The long wait for an Android 15 update on the Galaxy S24 continues, with disappointing news emerging from South Korea and China. According to a Samsung Community post and a reliable leaker, the One UI 7 update has been suspended worldwide due to a critical bug.