They do - no issues running on a year-old Thinkpad running Win10.
Changes are higher resolutions, scroll zooming, widescreen, I think it’s most of the changes on those 3rd party mods that have existed for a while but all with no fuss. Also includes UI changes from BG 2. I believe they increased number of items you can stack (arrows/bolts, potions, scrolls) at a time.
They added new party members and quests to go with them but it has been so long since I played the original I am not sure which those are.