How many montiors do you have?

Three sceens but only do creative work on one of them, tried to hook up my macbook pro 2020 (intel) with my old iMac late 2012, but even tho documention said it would work.. it didn't. So atm i'm stuck with a 13" screen. Bought Duet Display (software) that boats that it is flawless, it sucks, re resolution is way off and it lags like shit.

Expensive OG Apple cables, expensive 1 year subscription to a worthless applicaition and yeah... lost my regular dayjob today so will probably put it on hold to buy a screen for the mac book pro. fuck.