I have many friends, most of whom are professionals, but none of whom are software devs. A bunch of them do devops and SRE work, a bunch of them are creative professionals, and a bunch of them are in other professional services, like finance and law. Personally, I work for an "IT services" company, essentially doing outsourced devops and ops for numerous other professional services companies.
What I'm getting at is that I know literally hundreds of professionals, across my personal and work life. The sum total of those in my life who need or use 6 displays: Zero.
You are not, in any way shape or form, a typical professional. If you need 6 displays (which you might, but I'd bet a dollar you don't) you're basically so far out of the ballpark of standard professional that you're on the moon.
Let's not pretend that the Surface Pro — or the Macbook Pro, for that matter — are in any way not suitable for the vast majority of professionals.
No, I’m a developer, I work in, I dunno what you want to call it, Machine Learning Data Engineering? Stuff like that.
I use seven displays because I like spatially organized workspaces. Four of them are only 10”, effectively 1280x800 displays, two of which are always showing terminals. I have a particular way I like to work that I’ve developed around how macOS handles multiple displays/Spaces that benefits more from many small displays than few large ones.
In the long run, I more greatly value the software I get to use on macOS (not to mention things like first party hardware and software support) over the window managers and that type of thing available elsewhere, and frankly, as a geek, it feels cool having a matrix-operator-like setup as my workstation so I’m happy.
On the other controller, although it’s the one that doesn’t actually offer the full 40GBps, we have a 4k and a 2560x1400 display actually driven via DP over TB3 so that does eat up a lot of bandwidth. About 24Gbps. What’s left is basically powering a USB 3 hub with a handful of devices rarely using their full capabilities simultaneously. So it’s plenty of remaining bandwidth. But the official requested throughput is actually well above the real capability of the hardware so it’s hard to say exactly how close to maxed out it all is. Just that I’ve not yet had any issues or conflicts with the setup.
I get that people want some more variety and excitement, and maybe feel like the Thunderbolt port thing is problematic (despite absolutely enabling my most “pro” setup I’ve ever had on my ’17 13” TB MBP) and obviously the keyboard design has issues.
But as a whole package it’s still the best commercial product you can buy in its space, and considering actual size, has no real competition even if you ignore the many, many software issues one faces when leaving the warm, design-loving embrace of the macOS software ecosystem.
I’ll reconsider this situation after Microsoft releases a Surface product that isn’t almost guaranteed to require one or more returns to the store and oh, yeah, has Thunderbolt 3 support so I can plug in 2 cables to get: 6 external displays (1 4k, 5 2560x*), NVMe speeds to external storage, gigabit ethernet, digital audio, SD card reader, spare ports, etc. etc. (aka OWC TB3 Dock with nearly every port in use.)
There are a few non-MS laptops that might handle the hardware requirements I meet with my current setup, but, nothing that couples the hardware with the Software. Show me even one single app that matches the care and design of Things for macOS + iOS, for example. These are things I use every. single. day. for nearly every. single task.
Frankly, I look forward to Apple fixing some of their issues with the MBP line and hopefully by then the situation with mobile processors will be improved enough to allow for some bigger memory footprints and the like, though, honestly, despite running minikube based workflows locally, I’ve never ran out of RAM at 16GB. I guess it’s because I don’t use Slack.