Most people who do tech work in the sense of using a computer for most part of their days such as software devs (I hope) use external keyboards and screens and mice anyway, 99% of the time. AC adapter plugged in.
With the WFH trend, this will be a growing trend.
I unplug the AC adapter and monitor to go over to someone's desk or hold a presentation perhaps a few times a month at most. I would not want to write code a whole day on even the best laptop keyboard and the most crispy 4K laptop screen.
There is a surprising lack of choice for laptops targeting this mode of use though. For example the $3k Dell precision I have now doesn't like being used plugged in for extended periods. They put a category of battery in them that swells when heated. So if you, like me, leave it on for say a year at your desk (This happened during the pandemic) - it expands and the keyboard and trackpad stops working.
When you go for a "workstation" class laptop, the manufacturers have crammed so much perf into an impossibly small package, that it's screaming loud and glowing hot. Just make it twice as thick with half the battery size and I'll buy it.