I’m more of a specialist and a rule lawyer.
I mostly have a small collection of games ranging from easily explained to really huge. Like, I have Flashpoint, or Pandemic, or Betrayal at the house on the Hill. All of these are games you can understand well enough in 1-2 rounds of going if you know boardgames a bit. And then there are things like Junta, Arkham Horror, Eldricht Horror, Battlestar Galactica, considering to get the new dune game. Those are great, but a lot harder to get into.
But that’s a quality my current gaming circle likes. I can pick up a lot of rulesets and digest them decently quickly, because I’ve played a lot of games, and a lot of complicated games over the years. Like, if you’ve dealt with MtG and Dominion, you’ve seen 90% of deck building concepts and rules. Some P&P RPG experiences in 2-3 frameworks cover a lot of ground for a bunch of game rules. You kinda learn how rules tend to be written, how rules tend to be designed, and how rules are usually intended to be and that helps processing rulesets quicker.
Catan just feels weird. The thing is - and I kinda validated that recently by watching highlevel competetive play of the catan base game, but: You only have like 2-4 meaningful decisions in a game. The rest is just follow through and dice.
And these things aren’t that hard to see at a decent level. And when you make these decent decisions, you mostly just win. Even with the robber, there’s limited counterplay to these good initial choices. This makes it hard to play casually as well once you know the good things.