Fedora Silverblue (atomic GNOME) and Kinoite (atomic KDE) have been solid for both work and gaming. System maintenance is largely seamless and automatic once configured. I still use Arch daily, but only in the terminal (distrobox and containers).
Going AMD is so worth it too, I have zero regrets swapping my RTX 2080s for RX 6800 XTs. Secure boot, Wayland, no fuss updates. Couldn’t be happier.
You mentioned needing customization…not sure what you’re hoping for there, but the atomic distros allow for plenty of userspace tweaks. It’s the system-level stuff, like boot and greeter themes, that require a bit more work to implement. My time is too precious to fuss about that stuff these days.