What advice would you give someone new to Arch Linux?

Make the documentation your first stop whenever you run into a problem. Searching the relevant guide usually gives you a more accurate and useful solution than blindly copying a command from somewhere else. For software, prefer the standard repositories when possible, and inspect AUR packages carefully before installing them. Arch can be reliable for years if you keep up with updates and understand what you’re changing.

Be prepared for more maintenance than you might be used to with Debian. Arch’s newer packages can occasionally require manual fixes, configuration changes, or even a rollback, so it may not be worth switching if you mainly want a system that stays out of the way. If your goal is learning and experimenting, though, it’s a good environment—as long as you keep backups and don’t depend on it for anything critical.

Take the time to learn how Arch is put together instead of relying on shortcuts. The official documentation is extremely useful, and doing a manual installation can teach you a lot about the system. You’ll probably break something eventually, so keep a live USB available and learn how to mount your partitions and use chroot to repair the installation. It can be frustrating, but the experience is worth it.