Hot take: Do you think Online Tournament Poker got tougher? Wrong!
Online Tournament poker has become a lot softer over the last few years despite the rise in educational content available. Why? Many ex-crushers gave up their very profitable, exploitative style to make solver-approved plays. Solver-approved plays that are -EV in reality. Making hero calls vs. under-bluffing players, bluffing in situations where the opponent isn't folding enough, etc. Also, not going for those aggressive plays against weaker opponents in deeper stages. "But Ben, isn't a GTO style the most profitable?" YES, in theory. A GTO bot would crush everyone. But you will never reach that level because you are human, not a bot. Nobody plays a "GTO style". We play FRACTIONS of what is considered GTO. And we can't even get close to what is considered GTO. GTO helps you understand the game. Exploitative poker will make you money. We are very far from playing optimal theoretical poker, meaning there is a TON of room to exploit your opponents. I see many former good regulars punting their stacks left and right. This means more money is left on the table, which is good for those who play a solid style and truly understand tournament poker, which is a lot about in-game table selection, future game, and considering your own edge.
This is my opinion. Based on studying with friends, going through hand histories from our community in Discord, and coaching sessions with low- mid-high stakes players who went through this journey. From crushing back to breaking even, they had to admit they got lost in the complexity of GTO.
Remember this: Just because a call is slightly winning doesn't mean it is the correct play FOR YOU. Suppose you consider yourself a good player, are reasonably beating your stakes, and know how to exploit your opponents. Why would you risk your tournament life for a very marginal hero call (unless you have some FG considerations around the money bubble or FT)? You'll get plenty of better opportunities in the next couple of orbits.