It depends on how you define "serious work". Is it to get the best results possible, or is it to tax a computer as much as possible? Programmers would usually answer the latter, while users would answer the former.

That's why programmers put their stuff into Kubernetes which go into virtual machines, which go into eleven layers of javascript abstraction which go into twelve thousand node packages, which go into something else to end up with something with very basic functionality, which usually doesn't work very well.

Other pro computer users are focused on the results, so they use professional office software, calendars, communications, photo and video editing and effects, photo-realistic 3D editors, studio level audio and music editing software. All which lives perfectly fine on 8GB of RAM.