I use three 4K monitors. The middle one is portrait mode, which is great for writing code and preferable for reading articles/documents, which accounts for 90%+

I use three 4K monitors. The middle one is portrait mode, which is great for writing code and preferable for reading articles/documents, which accounts for 90%+ of what I do every day. The two monitors on either side are landscape mode and I use them for displaying the UI of apps I'm working on, Inspect & other Chrome developer tools, API docs, etc. The middle monitor runs at 1080*1920 resolution (because I'm old and that's the best combination of comfort and crisp text for my eyes) while the two side ones are 2560x1440. The bezels are completely irrelevant; I never notice them at all.