Wasteland 3 is a very approachable CRPG styled game. It’s not as granular in character build as Underrail because rather than playing as one character, you always have a party. You are encouraged to hyperspecialize each character, as dialog and skill checks will roll from whoever has the highest skill in the party.
I recommend WL3 over WL2 because the presentation is much more polished, a lot of unnecessarily complicated skills from WL2 have been collapsed in WL3, and the story feels more focused and doesn’t drag in the middle as WL2 does.