GoKawiilI have used a few different servers over the years, but have since consolidated all of my services onto a single server (build guide here), reducing the complexity of my environment.
Because of the single-server setup, maintenance is down 75% (from four servers to one). Yes, clusters and hypervisors and hybrid cloud solutions are shiny and fancy and popular, but I just don't care for it. Instead, I have a single metal box I can pick up with my hands sitting in my basement.
I do have one more "server": a Raspberry Pi 4, but it uses Home Assistant OS, updates itself, and requires literally zero maintenance. Is that really a server? I guess, by technical definition. But it certainly doesn't feel like it; it feels like I've turned a potential server device into a self-sustaining IoT device instead.