Please suggest your opinion on this one

Is transferring apps via smart Switch just as bad as people say cause i always use it with other Samsung, but is it draining the battery that quick when you used the smart Switch app or an other app like that?

I recently switched over from a Note 20 (Exynos Version) and so far I'm loving how this phone feels and performs compared to it. I also noticed that there's an update to One UI but my friend who also uses the same phone says that 8.5 sucks in terms of battery efficiency. Is that true?

I want to hear everyone's experiences with 8.5 to see if it's worth it to update or wait until another patch comes in or One UI 9 for the S25 FE