Fedora is a very early adopter of new technologies, often even earlier than Arch. They were the first to adopt PulseAudio, the first to use Wayland sessions by default, the first to drop Xorg, and will likely be the first to drop lib32 packages. Any issues that may arise from major upgrades or changes, you are most likely to be exposed to them on Fedora.
Fedora is a very early adopter of new technologies, often even earlier than Arch. They were the first to adopt PulseAudio, the first to use Wayland sessions by default, the first to drop Xorg, and will likely be the first to drop lib32 packages. Any issues that may arise from major upgrades or changes, you are most likely to be exposed to them on Fedora.