I've seen you like Benchys, so I just printed two 😄.
Since I only do this for hobby-use I sadly can't afford (or justify 😅) an S5.
The blue one was the first ever thing I printed on my Ultimaker 2+ with no clue of the printer and what PLA-filament that was, just used the suggested and factory-reset values. That's kind of old already.
The grey one is from my old i3 Mega, also printed with PLA from which I don't have a clue what brand or exact temperature-range it is, also just used the default settings suggested by Cura.
The white one is also printed on my Ultimaker 2+ but with adjusted acceleration-settings on the printer and an, over the time I use the material, slightly tweaked print-profile. This is not printed in PLA, it's Polycarbonate.
All of them are printed with 0.15mm layerheight and were sliced with Cura 4.4.1 (the blue one obviously with an older version, since it's kind of two years old now).
The only cleanup is the removed brim from the polycarbonate one, the rest is as it came of the printer.
The white one sadly contains some discolored material that collected up at the nozzle.
So here are some pictures: (there follows some text below the photos 😄)
I cannot really compare the results since those are the only three Benchys I ever printed.
To be honest, the first thing I thought after printing the very first (blue) Benchy was the same as OP's: "Why the hell can't this ~2000€ machine print a proper Benchy?!". But then I thought a bit further, I bought the Ultimaker not to print cheap-ass PLA, that could also be done with my i3 Mega, I bought it to print more advanced materials that can't be printed at all on that machine.
So after learning what the Ultimaker can do, playing around with the settings and using different materials over the time I got some better understanding of what I'm doing and what can be changed to get some aspects better. So after knowing the tools it can also produce a nice (I think it's nice) Benchy.
I think you can't expect buying a 6000€ printer will automatically get you perfect prints, it's like buying a expensive Mercedes-AMG, go to a random racetrack and expect the new world-record for that track. You have to know the car, you have to know the track and how they play together, you even might have to consider the weather and stuff. So in my opinion to get good results you need a solid, reliable printer (that has it's price, if that has to be an S5 will stay an open question that everyone has to answer on it's own I think). In my experience it's quite more important to know the materials you use and how they behave in certain conditions. What's also quite important is the design of the printed parts, I think you shouldn't blame the printer, that it can't print something that was intentionally designed not to be printed well (without adjustments) 🤷♂️.
Oh that became quite a long post (my first ever here in the forum 😄) and maybe a bit offtopic, so long story short, in my opinion an expensive printer doesn't make perfect prints on it's own, you have to tell him how to do it properly.
I also like to print CaliCats over Benchys to test stuff: