They put a lot of work into balance. Listening to the players. I don't enjoy playing PF, but I do appreciate that the community does spend a lot of time finding broken combinations and then the developers fix before the next edition. It's a very functional well put together game. They just have a toxic community.
The PF I know is literally Angel Summoner & BMX Bandit so, please, tell me about all the effort Paizo put into creating a balanced game.
(no contention that their community is toxic)
I think their problem is they have to put out too much crossover-able material under a unified system. They do keep up to date and do hotfixes like FF. It's not a bad company. They take feedback. Part of the fun for the players is in breaking the game, so when you hear about broken combos those were a mistake that will be looked at. The point is they know about the breakage and they work on minimizing the impact in future editions.