I am not sure how accurate the Wikis are at this stage and I shouldn't need to use a 3rd party to get this information anyway.
Why is the information in character creation so sparse? What do I get at higher levels? What proficiencies and skills carry over if I take a class after 1st level? I have no idea. How do spellcaster level and slots work with multiclassing? Look it up online, because the game doesn't tell you.
And why when levelling up is there an auto selection feature that you cannot turn off and which doesn't even clearly communicate what has been autoselected for you? For example, I found, to my annoyance, that my level 3 bard had expertise in performance and persuasion, not stealth and sleight of hand, the latter two being far more important not to fail and not having a cantrip that gives you advantage. I didn't realise that it was autoselected, because it was under the "class tab" on level up, which I had no intention of changing, not a separate skills tab.
If I am not playing story mode, this shouldn't even be the default option, let alone something you cannot turn off. To be honest, almost no one should be using this option. Making choices when levelling is fun and understanding mechanics as features are added incrementally is how players can best learn about the ruleset. A new player is much more likely to understand their class if they had to select their abilities after reading their description rather than just having them chosen for them without any input on the part of the player.
I and many other players are perfectly capable of handling the mechanical complexity of 5E without all the unnecessary handholding. Withholding information when you have homebrewed the rules and when prior DND games largely use very different (and usually more complex) rulesets is an active hinderance for players who could use the information to improve their enjoyment of the game by being more engaged in building their character. If I can handle the character creation screen for Pathfinder Wrath of the Righteous, I can deal with 5E, so long as I am actually given basic information about multiclassing and features acquired at higher levels. If Solasta can do this, BG3 can. Level progression wasn't something players were forced to read, but it was easily accessible to those players who wanted to.