I don't think time spent is a good metric when one game runs smoothly and seamlessly and is active gameplay the whole way through... and the other has you doing 20 minutes of inventory management and fighting with the UI for every hour of engaged gameplay.
BG3 up to the newest content (not including grymforge was of the latest patch, as I've not done the metric on that yet) has ~50 combat or combat-like encounters, each of which more or less always play out the same way, and each of which, once done, are done and offer nothing further. No, that's not, in my opinion, "more content than most fully released games"
Right, it is Early Access. So there will be things that chew into your time given that it is still being polished. But the point still stands. Obviously no one is arguing that a game clearly in Early Access is as polished as a game that is fully released and/or has been out for years.
There are a multitude of choices in terms of classes, races, character customization, dialogue choices, equipment, etc. that some of these other games do not have... but Baldur's Gate 3 does. Baldur's Gate 3 is a very deep game with a multitude of different things going on where you could play it twice and experience completely different outcomes. The other two games I mentioned have a linear story where none of that is possible and the game plays about the same regardless of what 'options' you pick.
This is not to say one type of game is better or worse. Just that one game gives you more gameplay time and more options in just about every conceivable way than some fully released games... and obviously it is not 'polished' yet because it is in Early Access. But to say that is 'limited' is madness.
For instance I think I have 42 hours played of BG3 Early Access. Because of that I already consider it worth the $60 I pay because I don't put 42 hours into most games that are released. Some games you can play twice and not get 42 hours of entertainment out of them. BG3's Early Access (and this is an opinion of mine, not anything objective) has entertained me so much I'd like to play through it again with different choices but I am holding back because I want to wait for the full release... this is because I know I put in 42 hours, but if I put in another 42 the experience would be almost completely different than my first go around.
