@mrgrumpymonkey @itsfoss I never reinstalled Arch over Arch, but I did reinstall other distros over existing Linux distros and I simply chose manual partitioning. Assign / to /, swap to swap, etc. Select the filesystems, check the box to format the relevant partitions. Then continue the install as usual.
@mrgrumpymonkey @itsfoss I just used the "manually assign partitions" (or whatever it was called) mode provided by Ubuntu/openSUSE/whatever graphical installer. Not sure how to do it with Arch's installer.
@mrgrumpymonkey @itsfoss I guess you can just install few distros in a VM to try it out. If something goes wrong, only the VM image gets borked. You can even try fixing it if you feel brave (often it's just calling grub-install to the right drive).
@elgregor @itsfoss Installers are the worst portion of this entire list. Already have a Linux partition installed? Welp, now you can't install a new version of Linux until the entire drive has been wiped using an active operating system. At least, this has been my experience, SPECIFICALLY, with Arch based distros. I get this site doesn't really delve that far into the weeds, but this is one of those things that should be looked a bit further into. I can't disagree with the rest of the list. 🙃