I had a similar experience with Dishonored. I got ghost on a few missions since low chaos is more akin to my natural play style, but found it to be more enjoyable to set my own “rules” for my playthrough. It’s also a game that’s worth a second playthrough just to experience the opposite side of the spectrum. Super fun game any direction you choose, but you’ll miss a lot of cool aspects by limiting yourself to one extreme or the other.

Have you considered a Prusa Mini? Unless you need a larger print bed, it’s a great starter printer at that price point.

I have a MK3S and a MK3S+, one with a stock nozzle and one with a Revo. I print the same gcode on both machines and haven’t seen a need to tweak the settings for the Revo. Have you tried slicing with the default settings for Prusament PETG in Prusaslicer?