Counter: you are looking at it wrong. You can get work done in 1/2 of the time it used to. Now you got 1/2 of the day to just mess around. Socialize or network. It’s not necessarily that you’re producing 2x.
This has never been the case in any company I've ever worked at. Even if you can finish your day's work in, say, 4 hours, you can't just dip out for the other 4 hours of the day.
Managers and teammates expect you to be available at the drop of a hat for meetings, incidents, random questions, "emergencies", etc.
Most jobs I've worked at eventually devolve into something like "Well, I've finished what I wanted to finish today. I could either stare at my monitor for the rest of the day waiting for something to happen, or I could go find some other work to do. Guess I'll go find some other work to do since that's slightly less miserable".
You also have to delicately "hide" the fact that you can finish your work significantly faster than expected. Otherwise the expectations of you change and you just get assigned more work to do.
Literally unwinnable scenarios. Only way to succeed is to just sit your ass in the chair. Almost no manager actually cares about your actual output - they all care about presentation and appearances.
Uh, no?
I had a task to do a semi-complex UI addition, the whole week was allocated for that.
I sicked the corp approved Github Copilot with 4o and Claude 3.7 at it and it was done in an afternoon. It's ~95% functionally complete, but ugly as sin. (The model didn't understand our specific Tailwind classes)
Now I can spend the rest of the week on polish.