TrueNAS scale with truecharts for my main server.
I'm considering rolling out a compute only server with openSUSE microOS to leave trueNAS only for storage.
I like openSUSE philosophy and microOS with cockpit seems solid on my tests. I might start with some old laptops and deploy the ldap server there to test it and remove that responsability from TrueNAS.
Arch for stuff I have physical access to. Nothing's ever gone wrong, so it's worth it for the immediate updates and consistency with my other systems. For VPS I use Debian though, occasionally the unstable/Sid branch if I really need the latest updates. There are almost always Debian images available on a VPS.
Stable? I never had instability of any kind with gentoo like... Ever... Except for faulty hardware (dead USB Ethernet card, bad memory stick...).
Gentoo let's you build the most skinny and bloatless server you can, just what you need how you want it. No bullshit, no choices made by others (Ubuntu I look at you). And optimized for your hardware too.
Today's compile time is ridiculously small, so that's not a down point for Gentoo.
Also, its so damn adherent to the true Linux philosophy that its surprisingly logical and coherent in it's internal organization that doesn't get in your way.
Ah, and docker and podman support is piece of cake if you like that stuff.
Its even less bloated than a plain text-only fresh Debian install.
You don't even have a logger or a cron daemon by default unless YOU install it.
And there is so much great quality documentation that even navigated Linux people will learn new tricks installing Gentoo.
Check out the Gentoo Handbook online.
And I have more than once installed gentoo on another running Linux, then rebooted remotely to a fresh Gentoo. Do it with any other distro, I dare you!
That's the boat I'm in, I swapped my laptop from kubuntu to Debian which is solid for me. Server has a lot setup on it that I could move but for now Ubuntu server works, not really feeling the push to change.
Maybe, but I'm not a huge Linux user and every time I dip my toe in I run out of tinkering time. Plus I had the Air laying around and it all installed so easily.