Additional to BG3 being in EA, this is cRPG game that is supposed to be harder than usual RPG. It doesn't have to tell you everything. Use your brain, imagination and startegy.
There is no need for experience from every little thing you do.
Have you every got experience by sneaking on enemies in BG1/BG2/IWD? No! You have it for quest objectives and killing creatures.
Also, the vast number for experience that you are getting in this game makes your characters level 3 after 1 maybe 2 hours. And the max level in EA is lvl 4.
You can reach the limit quite fast, comparing to leveling up in previous BG games.
Personally for me, only two or three parts of the game were challenging. It's fun to level up quickly at the beginning, but you are missing a lot of fun later on.