Listen man. Let me give you a tip.

Don't take it seriously.

Efficiency is not your job, until you can 1) solve it, 2) present the solved and implemented problem to senior leadership in one fell swoop.

Corporate America is a giant slush fund and this is how it keeps going.

Be grateful!

What kind of professional would spend 4 hours of their time per day playing video games?

The true professionals spend those 4 hours making snarky Hacker News comments.

I would be more concerned with playing video games half the day than whether the PMs are slowing you down by figuring out the requirements