It starts slow, with a lot of dialogue but these are almost all meaningful. Ye game does a good job explaining all the mechanics and the difficulty was right on point for me (I us know at strategy games). Music is very good too.

I know exactly how you feel. I did 24 FHD to 27 4K, was disappointed by the cost/reward ratio and then switched for a 34 UW 1440p and was blown away. But to get back on track and answer OP’s question: yes, you will notice immediately the difference between 1080p and 1440p for most games. If you mostly/only do competitive shooters, a high refresh 1080p would arguably be better. Also, please not that the CPU/GPU both play an important role at 1080p, but the higher the resolution the more the pressure on the GPU (even if the CPU is still relevant).

I have not read the book, but it looks a lot like what I started doing to kickstart my PhD dissertation.