Surely chess has only become boring to the likes of Fischer because he is amongst the best chessplayers that has ever played.
I've Googled "number of chessplayers in the world" and estimates vary wildly, but what is common to all these sources is the opinion that grandmasters make up a tiny fraction of people who can play chess. Unless you are one of this tiny fraction of people playing another one, you are unlikely to have the chessplaying skill, time, determination or inclination to play 20-30 moves without really thinking, and to feel, like Fischer, that chess is boring.
I've been playing chess for 30 or so of my 40 years, and I don't think I will ever reach a stage where I sit down to a game, over the board or on the internet, where I am bored before I start, or indeed where I will know the outcome before I start, even if I have played that player many times before and won (or lost) the majority of those games.