Samsung Experience is ok. It was also fast and fluid on my Note 8. I like stock Android too. The only thing I don't like about Samsung Experience is the split personality it has. Samsung tends to duplicate everything in Android from the Google Play Store to the Google Assistant. Managing a phone with apparent schizophrenia can be a daunting task.
My only other gripe is that Samsung Experience fails with AOD where stock Android and Apple gets it right - they allow to lift a phone that's turned off a d shows the display long enough for you view time, check ti see if there are any messages and such. I do not want an 'always on display' on my phone, but don't want to always have to press a button to see the display either.