Maximum settings at 4K = rock-steady 144 fps. Not in power-saving mode, however! Rig is a Ryzen 9 5900XT cpu paired with a RX6700XT gpu, so probably higher-end but not top-tier.
It is a truly exceptional engine, that's for sure. Have you seen Adrian Courrèges' breakdown of a rendered frame? That tricks that it gets up to to keep things fast and smooth are really impressive.
I've installed both Arch (systemd) and Void (runit) on the same laptop as an experiment to see whether you could have them both coexisting on the same filesystem. (Which you can - main difficulty is keeping their kernel names separate in
/boot.) There was very little difference between them in time-to-desktop. Arch was faster, if anything. And I run more services on a desktop than I would on a server.Choosing init scripts over systemd is fine for philosophical reasons or if you prefer it for maintenance, but speed isn't an issue. Init scripts are simpler, but systemd goes to great efforts to start things in parallel. Critical servers should be load-balanced and redundant anyway so that you can restart them for updates; whether they take a second longer to start-up doesn't matter.