> Did I work 20-30 minutes, or have I been working for a day or two? I would say a day or two, and the 20-30 minutes was the time needed to produce the deliverable of that work.

I would say that I do this too. There's a lot of stuff I can more or less do on autopilot and stuff that requires actual attention and finesse, for lack of a better word. I feel like management thinks that I'm good at my job for all of the autopilot stuff that I can crank out, and that makes up for the time I spend implementing one of the more interesting bits.

I think one of the ways that remote work changes this is that I can do other things while I think through a tricky problem; I can do dishes or walk my dog or something instead of trying to look busy in a room with 6-12 other people who are furiously typing because that's how the manager and project manager understand that work gets done.