I didn’t change anything on OSMC after the update except refresh rate from 30p to 60p.
There aren’t really that many options.
(you probably didn’t find what I mentioned in the manual, because I have the menu in German and just translated it myself)
What is if chosen Custom? Can you then disable all the other options?
I haven’t seen much reports from Samsung on the Forum but maybe someone else has a Samsung TV and can comment.
Again, set it to 16:9 standard and fit to screen to ON. I have 2 samsung tvs with veros and this works for me. The setting used to be called to just fit bit was changed in a firmware update recently
Ok, that is exactly what we don’t want. So I think best to follow what @modul8 wrote (as he also owns a Samsung TV) and reset all the overscanning you had configured in Kodi.