There's been one major update since the Switch release, adding a new type of ship and two new multitools, but that hasn't significantly changed how the game is played. Sorry that it hasn't hooked you in!
I do recommend trying out an expedition (the current one is live for another 4 weeks). It's a bit different from the main game, because it guides you to do specific things through a sequence of objectives, with some pretty cool unique cosmetics as a reward. It's time limited content, but usually there's plenty of time so you don't feel pressured to complete it as quickly as possible.
I actually decided to jump back in and start a new standard file (I was going to do the expedition but it suggested doing that only if I was already familiar with the game) and I actually kind of... love it now? I'm still in the tutorial and have just reached the space station but I'm having so much fun with it.