Some basic features of the original are no longer in the remaster.Now that both Reforged and the original game are on the same online infrastructure, those connectivity issues will impact the original as well.Connecting to custom matches or even accessing the campaign has been an issue for many. Many users have been experiencing login and connectivity issues as well.
Others say the game in general looks worse, though this is subjective. Some are saying the UI looks worse than before.
You can compare the Blizzcon footage ( here) to the release ( here) to see what I mean. So what exactly is going on with Reforged? Lots of stuff. ‘Genshin Impact’ Still Refuses To Increase Anniversary Rewards, Despite Fan Outcry