I will say it again; I will compare it to the Galaxy Note 9, which is the most recent model.
Some functions became unstable, including the following: - the search for applications is noticeably slower (despite the fact that there are fewer of them); - many bluetooth devices that worked well with the note 9 either stopped working (Picooc scales, drop kitchen scales), or regularly fail (chipolo key fob); - the battery life of the note 9 is noticeably shorter.
Aside from that: - there were no unintentional touches at all in note 9; nonetheless, there are a lot of them, and you can type "y," "f," etc. with one hand. it's generally unrealistic, other keys work, such "e," and I'm normally silent about the program, but this causes some of them to need to be restarted; - the Bixby camera has stopped being at least partially useful: In places where the Note 9 can read a QR code, the S10+ is unable to do so; on the other hand, using a fingerprint scanner may not always be available in some applications (after all, for this a window should appear with a designated area where to attach a finger, but, for example, the Tinkoff application shows it every other time).