Depends on you. I want the fast charging because it's fast & the phone will not outlive the battery with me. I want the newest flagship and don't plan on keeping a phone too long.
I've got both a 1080p and 1440p monitors and I prefer the 1440p. The clarity difference is so obvious even when the 1440p screen is 3" bigger.
And the 144hz rate on the 1440p is a big plus.
All of it unless you need some proprietary hardware that needs that software like lighting or what is.
It being in Inspiron probably wouldn't need any.