I feel that. I’ve used Linux before systemd but when I went into the “nitty gritty” by using arch systemd had just been implemented and everything I learned about startup services init etc. was systemd based. When I started my career working in servers they were redhat/CentOS so still systemd and when I switched jobs Debian already had made the switch so (most of) the systems at my new job were also systemd based. Of course I learned the basics of init files and even some rc.d but systemd still makes the most sense to me and like you say it’s “comfy”.