Hi - I recently purchased an M2 Mac mini to be able to try different ARM Linux versions (running in a Parallels Desktop Virtual Machine). This is what I found:
1.) AlmaLinux 8.8 aarch64 - I could not get this to boot
2.) AlmaLinux 9.2 aarch64 - I could get this to boot and was able to fully install the Linux operating system. But not currently supported by Plesk.
3.) Ubuntu Server 22.04 LTS - I could get this to boot and was able to fully install the Linux operating system. I was then able to fully install Plesk for ARM Linux, (at least, the parts of Plesk for ARM Linux which I plan to use).
I don't plan to use Mac minis to do any actual revenue earning hosting in my Datacentre, I am using this Mac mini as a test-bed (because it's cheap), and as a prelude to ordering a SuperMicro server with a dual Ampere Altra CPU motherboard. When I first came across the Altra CPU, it had 80 cores. Now there is 96 cores, and a 128-core version is being planned. Times two CPUs, is a lot of cores, running at greater thermal efficiency and better kWh power consumption.
I would much prefer to continue to run Plesk on AlmaLinux or other rpm-based distro like RockyLinux. The reason is, that the RedHat / yum / rpm package manager system is much better than the apt-get, dpkg, .deb package manager system on Ubuntu Linux. I do in fact use Ubuntu Linux quite a bit in my business, but not for the purposes of Plesk-controlled VPS's, they are all CentOS and AlmaLinux.