Been playing for 5+ years and into the genre for longer (watched a lot of Critical Role, Dimension 20, quite a bit of Mat Colville as well). DM a weekly(ish) campaign in homebrew setting for 4+ years now also run both improvised and pre planned one shots/short games. Longest game played in was 5 year fortnightly. In another game where we take in turns to DM, hence the number of one shots/short games I've run.
As a player I honestly am a bit of a min/max'er but within spirit of fun; want to make my character the best they can be, enjoy the technical challenge of making an awesome interesting character within the confines of the setting. I love rolls going horribly wrong, as long as feeling it was fair and no-one felt cheated.
As a DM my main priority is that my players are encouraged to experiment with what they can do and not have to worry too much about the technical side of the game. Their actions will have consequences though and that just because something bad happens to their character doesn't mean it's bad for them.