75w is nuts actually. I measured my _desktop_ setup about 10 years ago including two monitors and idle was around 35w. It also doesn't make sense to include idle of all peripherals since you would be using them for chatgpt as well.
Enshitification, I've been using Gmail for decades and it was significantly faster and more responsive in the past. It still works fine tbh, but it did work better. Whether or not something is successful has little to do with its quality or performance these days.
There was also a time where once a website or application loaded, scrolling never lagged. Now when something scrolls smoothly it's unusual, and I appreciate it. Discord has done a really good job improving their laggy scroll, but it's still unbelievably laggy for literal text and images, and they use animation tricks to cover up some of the lag.