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.
Everto
Have you considered a Prusa Mini? Unless you need a larger print bed, it's a great starter printer at that price point.
I'm not sure. That's the first I've heard of a fire. It's pretty easy to find in my area, but I can't speak for the rest of the country. I have noticed the price go up some in recent years, but I assumed it was from popularity and just general inflation.
Angel's Envy is one of my favorites. Runs about $45 here in the states and is relatively easy to find. I'm not sure if they export though.
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?
I switched to Printed Solid Jessie filaments after my previous bread and butter supplier, 3D Solutech, went out of business. Jessie is been good so far for a relatively low price. I hope they continue to expand their color lineup because they're still missing a lot of shades I used previously. I'm still searching for a secondary brand to fill those gaps.
I'm probably not your target audience, but personally I actively avoid any new subscriptions. I've got more than I want or need already. I'd much rather buy something once and just own it. For a fitness game especially I'd suggest a robust free trial to help users justify the purchase.