Manjaro. I had previously already used Antergos and Ubuntu, but after Antergos stopped I needed something like it. So I installed Manjaro in my secondary PC (with old components). I constantly got into trouble with the manual kernel version selection thingy. I was used to kernel updates being part of the normal update process, and suddenly I had to manually pick the new one. I constantly ran into incompatibility issues with older or newer kernels, vague update deadlocks where I couldn’t update things because they depended in each other, and I absolutely hated having to use a separate program for updating the kernel. Now the PC runs Fedora and I’m liking that a lot more so far…