EA had exclusive rights to all the majors going into their last game, but seems to have lost them, since PGA 2K25 will have The PGA, the US Open, and The Open Championship.
As for The Masters, the current situation is really unknown...EA may still have exclusive rights to it, or the rights might be more than 2K is willing to pay (at this time, anyway). Perhaps 2K could be working with Augusta to get the Masters in at a later date? No one's really sure.