You will get more screen space vertically and you will absolutely appreciate it! In windows I have 150% view scale. In 4.18 that just came out, it will scale Editor’s DPI properly, so you will have everything very nice, normal size, and very sharp. I used to have as a primary 26" dell monitor. Now I have Dell UltraSharp 4k UP3216Q as a primary and that 26" serves as a secondary (whole set up feels very similar as 26" next to 19"). My 4k is 32". If you can find at a good price a good 4K 34" monitor - take it. Most of them will be wide than regular 4K (and will not fit on my desk, that is why I chose 32"). 36" will not fit into my desk (it will hit book shelves), 40" might be too big at first, but a friend of mine actually uses 40" monitor in Unreal (he is a 3D designer). You get used to it very quick and shortly it will feel like you always had one 