I sort-of feel like we are there already. I think we are quickly reaching the point where even games and most demanding workloads don't require a desktop. I work on video games professionally and even I do most of my work on a laptop.
I've been eyeing the Razer Blade, while the build quality is enticing, the battery life has me worried.
For reasonable portability, decent gaming and excellent CPU performance, the laptop in the article is $1450, though availability is still low.
For seriously good performance on a tight budget, the Asus TUF 506 (A15) lines packs a Ryzen 48xx and up to an RTX 2060 into a $1000-1200 laptop. The screen has high performance on paper but older versions of this laptop had bad things to say about the screen, so I'd wait for reviews.
There are other Asus options like the A17 and Zephyrus G15 which are all worth a look, and starting to show up in stock here and there.
Personally, I can deal with reasonably under-powered, I still have a desktop when I need and I'm mostly proprietary engine technology that doesn't need as many resources as say an artist or designer who spends most of their day fully in-game content.
I do a lot of rendering work so I have an eGPU (Razor Core) and the integrated Intel GPUs aren't so bad anymore.
So, having said that I have the most recent XPS 13 2-in-1 as my primary machine, it's for sure a compromise in power, but it does most of what I need it to, and I often RDP into the desktop when it's not.
I choose the 2-in-1 because it was the first 13" laptop that I could find that had 32GB of memory and met all my other criteria (USB-C charged, etc) I understand the non 2-in-1 model now has a 32GB configuration so I'd consider that for sure.
Compilation is my largest frustration at this point really, but I'm playing with various remote/distrusted build options to speed up that workflow.