I have been having success with narrative conversational therapy.
At my best, especially on projects I care about, I’m a high performer. At my worst, I’m slow and mediocre. In the end, most of us are simply average.
But I think it's important to distinguish between cases where people hardly work but get praised for their output, and cases where the employer notices and tries to get rid of the employee. The latter case is obviously problematic. But what if Google told you they love your work even though you hardly ever work? I wouldn't see it as problematic at all in this case.
The right mental health diagnosis might temporarily shield you from certain employment consequences and longer term actually help you find a sustainable pattern of work and life. Google offers benefits and resources that might help in that area, try them before you lose access.
"a day in the life of an engineer working from home" https://youtu.be/Rgx8dpiPwpA
I've never outright lied, though certainly hemmed and hawed. And occasionally blatantly "I haven't done anything this week". And yeah, certainly work-from-home makes it easier to shut down and ignore everything. Which is great, except you feel like crap afterwards.
But like I said, it depends on the project. Next job I take, money is going to be less of a consideration. Just want to work on something interesting. And there's a reasonable likelihood that I fall into the category of "needs professional help" (I also flunked out of school twice and took six years to graduate, despite getting five 5's on AP tests and only needing two years' worth of credits), but I've tried a few times without much success.
And, no I don't think it's super-common. At least not to this level. Most of my coworkers seem to genuinely work pretty hard. Though some don't.