Pretty much any distro that isn't Ubuntu. Are you asking for privacy or security? Those are very different.
For security, I'd stick to more complete distros like Fedora instead of more diy distros like NixOS or Arch. They're great to learn and tinker with, but distros like Fedora have security experts adding mitigations and security stuff in the distro by default, whereas most users of Arch or something would have to manually look up those things and keep up to date on the latest security. So basically, none of them lol.
Using more hardcore security distros like QubesOS is not very realistic as a daily driver. You'll see Linux nerds name drop it and claim they know what they're talking about, but none of them will actually dailt drive it because it's a very painful experience. Just stick with flatpaks as much as you can for pretty solid security.
Ubuntu is bad privacy-wise because it has opt-out telemetry. The telemetry is not very invasive though and I wouldn't really call it a privacy risk.
There are other reasons to prefer other distros over Ubuntu though
Selinux is more secure then app armor, but more difficult to use. Ubuntu is also pretty secure, I'm just not as familiar with it. I mentioned it for the privacy but, since it used to have some Amazon bloat crapped bundled and telemetry built in.
why everything gotta be an argument, sometimes it's just fun to say your opinion like you would talking to someone in person. Wonder what it is about text chat that kind of changes the dynamic
Nope. GP explicitly mentioned security experts that Fedora employs and other security stuff that Fedora apparently has an advantage on over other distros. I wonder if they knew in particular what these advantages are because that got me curious.
Read their comment again. The first paragraph is about privacy and Ubuntu is only mentioned at that point. Fedora's default security is only compared to nix and arch.