From my initial foray this last month into graphics cards, you seem spot on (importance of the host, and definitely of the usage). At it's core in my case, I need ability to put up side by side windows containing clean smallish text on a 4k 43" screen. (My little Dell refurb laptop can (8th gen i7 CPU) as it can crank out 4k video resolution @ IIRC 30 Hz.) But none of my SFF desktops can [older I-series CPU's].)
I hear ya. Love the i7s