Please stop prompting me to upgrade, Kubuntu.
Phoronix did some benchmarks contrasting stock amd64 vs. amd64v3. Not really impressive right now, but who knows if things will improve later on
Do you know if a similar report exists for Intel based CPUs?
I don't know, but if any exists you might as well find it in phoronix itself
Did fedora also move to amd64-v3 recently?
Not sure about Fedora, but openSUSE Tumbleweed and Arch have this enabled for a while now: https://www.phoronix.com/news/openSUSE-TW-x86-64-v3-RPM
No
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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